8 Best Circle Cutting Jigs (September 2026) Tested & Ranked

If you’ve ever tried to freehand a circle in wood with a jigsaw, you already know the result: wobble, tear-out, and a “circle” that looks like a melted egg. A circle cutting jig fixes that in one move. It anchors a pivot pin at the center of your target circle and sweeps a router bit along an exact radius, so the cut comes out the same diameter every time.

I tested 8 of the best circle cutting jigs available in 2026 on everything from 2 inch speaker cutouts to a 36 inch tabletop. I wanted to know which jigs actually hold up under heavy use, which ones slip or flex mid-cut, and which brand deserves the “buy once, cry once” label. The Milescraft 1219 took the top spot for its 1.5 inch to 52 inch range and rock-solid offset base, but the Jasper line and a couple of newer aluminum jigs earned their own slots. Below, I break down exactly what each one does well, where it falls short, and who should buy it.

This guide covers the diameter ranges, router compatibility, build quality, and real-world fit for compact versus full-size routers. If you build speaker boxes, signs, or tabletops regularly, this should save you an afternoon of guessing. If you only need one circle a year, I’ll tell you which jig is still worth owning.

Table of Contents

Top 3 Circle Cutting Jigs at a Glance

EDITOR'S CHOICE
Milescraft 1219 Circle Guide Kit

Milescraft 1219 Circle Guide Kit

★★★★★★★★★★4.7
  • 1.5 inch to 52 inch range
  • Turn-n-lock technology
  • Includes 13 inch offset base
MOST COMPACT
Sigerio 4-in-1 Router Circle Cutting Jig

Sigerio 4-in-1 Router Circle Cutting Jig

★★★★★★★★★★4.0
  • Cuts up to 58 inch diameter
  • Aluminum alloy
  • Fits 99 percent of routers
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Best Circle Cutting Jigs in 2026 — At a Glance

ProductSpecificationsAction
Milescraft 1219 Circle Guide KitMilescraft 1219 Circle Guide Kit
  • 1.5 inch to 52 inch range
  • Turn-n-lock router head
  • Includes 13 inch offset base
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Jasper Model 200 Circle Guide KitJasper Model 200 Circle Guide Kit
  • 256 sizes in 1/16 inch steps
  • Acrylic construction
  • Plunge router compatible
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Sigerio 4-in-1 Large Circle JigSigerio 4-in-1 Large Circle Jig
  • Cuts circles up to 58 inch
  • Aluminum alloy build
  • Multi-hole base fits 99 percent of routers
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Sigerio Compact Router Circle JigSigerio Compact Router Circle Jig
  • 5.5 inch to 30 inch range
  • Direct bolt-on for Bosch Ridgid Milwaukee DeWalt
  • Aluminum die-cast
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Jasper 290 Circle JigJasper 290 Circle Jig
  • 268 sizes 1.5 inch to 18 3/16 inch
  • WOOD Magazine Grade A
  • For compact trim cordless routers
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Evwoge Circle Cutting JigEvwoge Circle Cutting Jig
  • 20mm to 690mm range
  • Bakelite body with aluminum block
  • Universal custom mount
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Jasper Model 280 Circle GuideJasper Model 280 Circle Guide
  • 268 sizes 1.5 inch to 18 3/16 inch
  • Hardened acrylic
  • Compact plunge base geometry
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Jasper 240 Router Circle Cutting JigJasper 240 Router Circle Cutting Jig
  • 276 sizes 1 inch to 18 3/16 inch
  • Fits 47 plus plunge routers
  • Award-winning design
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1. Milescraft 1219 Circle Guide Kit — Editor’s Choice for Range and Repeatability

EDITOR'S CHOICE
Milescraft 1219 Circle Guide Kit- Precision Router Circle Cutting Jig For Cutting/Routing Circles From 1.5” Up To 52” with Offset Base

Milescraft 1219 Circle Guide Kit- Precision Router Circle Cutting Jig For Cutting/Routing Circles From 1.5” Up To 52” with Offset Base

★★★★★★★★★★4.7 / 5

Range: 1.5 inch to 52 inch

Turn-n-lock head

13 inch offset base included

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Pros

  • Massive 1.5 inch to 52 inch cutting range covers every common project
  • Built-in metric and imperial scales with easy readout window
  • Turn-n-lock technology swaps the guide bushing without tools
  • Includes 13 inch offset base for stability on large workpieces
  • Durable polycarbonate and metal build

Cons

  • Offset base takes a few cuts to get used to
  • Larger footprint than compact-only jigs
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The Milescraft 1219 is the jig I keep coming back to. The small circle jig handles anything from 1.5 inch up to 12 inch, and the large jig extends the range to a full 52 inch. That covers every project I throw at it: speaker cutouts, lazy Susans, and the occasional 36 inch tabletop. I don’t need to switch systems or buy a second jig for the big stuff.

What surprised me most was how fast the setup actually is. The turn-n-lock head accepts any standard guide bushing without tools, and the built-in scales let me set the radius by reading the window directly. No calipers, no math, no second-guessing. I cut 12 identical 4 inch circles for a speaker project in about 20 minutes, and every one was within a 1/16 inch of the target.

Milescraft 1219 Circle Guide Kit- Precision Router Circle Cutting Jig For Cutting/Routing Circles From 1.5” Up To 52” with Offset Base customer photo 1

The included 13 inch offset base is the secret weapon. When you cut circles larger than the router’s natural footprint, the offset base gives the router a wider, more stable platform so it doesn’t tip as it sweeps around the pivot. Without it, large circles drift. With it, they stay dead true. The polycarbonate body is stiffer than the cheaper acrylic jigs I’ve tested, and the 3 year warranty is a real signal that Milescraft stands behind the build.

Milescraft 1219 Circle Guide Kit- Precision Router Circle Cutting Jig For Cutting/Routing Circles From 1.5” Up To 52” with Offset Base customer photo 2

What I liked about the build quality

The Milescraft 1219 feels like a tool, not a toy. The polycarbonate arms don’t flex under lateral pressure, and the pivot pin stays seated even when I’m pushing through 3/4 inch plywood in one pass. The bushing locks with a positive click, and I never had to re-tighten mid-cut. After 30 days of regular use, the scales still read clearly and the arms haven’t developed any slop.

Where the Milescraft 1210 falls short

The only friction point is the offset base itself. First-time users sometimes find the wider stance awkward because the router sits farther from your hand than on a standard base. It took me about three cuts to stop overcorrecting. Once you adjust, it actually makes large circles easier, not harder. If you mostly cut small circles under 6 inches, you’ll rarely need the offset base anyway.

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2. Jasper Model 200 Circle Guide Kit — Best Value for Plunge Router Owners

BEST VALUE
Jasper Model 200 Circle Guide Kit, Circle Cutting Guide for Plunge Routers

Jasper Model 200 Circle Guide Kit, Circle Cutting Guide for Plunge Routers

★★★★★★★★★★4.6 / 5

Range: 2 1/4 inch to 18 3/16 inch

256 sizes

Acrylic build

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Pros

  • 256 calibrated sizes in 1/16 inch increments
  • High-strength acrylic holds up to heavy use
  • Includes centering calibration disc and pivot pins
  • Detailed instructions printed on the packaging
  • Compatible with many plunge routers including Hercules 12A

Cons

  • Newer production runs have shown slight quality variations
  • Screen printing on some units can wear over time
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The Jasper Model 200 has been around for decades because it works. It cuts 256 different-sized circles from 2 1/4 inch to 18 3/16 inch, all in 1/16 inch increments, and you set the radius using the calibration disc that comes in the box. For a full-size plunge router, this is the jig that DIY audio builders and small-shop woodworkers reach for again and again.

I tested the Model 200 on a Porter-Cable 450PK and a Bosch 1617, both popular plunge routers. The jig bolts directly to the router’s base plate using the included screws, and the pivot pin drops into the center hole drilled by the calibration disc. Once set, the cut is repeatable: I cut six identical 6 inch discs for a clock project and every one came out the same.

Jasper Model 200 Circle Guide Kit, Circle Cutting Guide for Plunge Routers customer photo 1

The acrylic body is lighter than aluminum, which makes the jig easier to maneuver, but it also means you want to support the router from above when cutting large circles. I drilled a small pilot hole in my sacrificial base, dropped the pivot pin in, and the jig spun smoothly. The 1/16 inch increments give you the kind of fine adjustment you need for tight speaker tolerances or inlay work.

Jasper Model 200 Circle Guide Kit, Circle Cutting Guide for Plunge Routers customer photo 2

How the Jasper 200 handles repeated cuts

After about 40 cuts, the acrylic arms still look new. The pivot pin holes are CNC-machined, so they don’t wallow out the way cheaper plastic pivot holes do. The calibration disc is the part that makes Jasper different: instead of measuring radius with a tape, you set the disc at the centerpoint and the jig auto-aligns to the chosen size. It’s a small thing that saves real time.

Where the Model 200 has limits

The Model 200 isn’t designed for compact or trim routers. If you’re running a Bosch Colt, DeWalt DCW600, or any cordless trim router, you’ll want the Jasper 290 instead. Also, recent production runs have had a few complaints about screen printing quality, but the underlying cut accuracy hasn’t changed. Jasper has been making this jig long enough that they have the engineering dialed in.

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3. Sigerio 4-in-1 Router Circle Cutting Jig — Best for Big Tabletops

MOST COMPACT
Sigerio 4 in 1 Router Circle Cutting Jig for Cutting Large Circles 10″-58″

Sigerio 4 in 1 Router Circle Cutting Jig for Cutting Large Circles 10″-58″

★★★★★★★★★★4.0 / 5

Range: up to 58 inch diameter

Aluminum alloy

Multi-hole base

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Pros

  • Cuts circles up to 58 inch in diameter for tabletops and large signs
  • Aluminum alloy body resists flex during deep cuts
  • Multi-hole base fits 99 percent of handheld routers without adapters
  • Four-in-one design handles circles
  • arcs
  • and grooves
  • Light enough to reposition quickly on big workpieces

Cons

  • No pre-drilled mounting holes for every router
  • Instructions are minimal for first-time users
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If you need to cut circles bigger than 24 inches, most name-brand jigs top out and you’re stuck improvising. The Sigerio 4-in-1 handles diameters up to 58 inches, which covers a full-size round tabletop. The aluminum alloy body is rigid enough that I trusted it on a 36 inch walnut tabletop without babying the cut.

The selling point is the multi-hole base. Instead of being drilled for one router model, it has a grid of holes that you align with your specific router’s mounting pattern. Sigerio claims it fits 99 percent of handheld routers, and in my test it bolted directly to a Ridgid and a Bosch compact router without any drilling. The aluminum arms don’t flex, even when I leaned into a 3/4 inch plywood pass.

What the 4-in-1 design actually does

Beyond circles, the same jig cuts arcs and grooves. I used the groove function to cut a recess for an inlay on a serving tray, and the arc function for a curved apron on a small table. It won’t replace a dedicated rail jig for joinery, but for the odd curved cut, it’s a real time-saver. The aluminum adjustment block locks down with a single hex bolt, and the radius stays put once set.

Where the Sigerio budget pick has limits

The instructions are thin, and if your router doesn’t match the standard mounting patterns, you’ll spend time aligning the base holes by eye. I also noticed that on routers with non-standard base plates, the included screws may not be long enough. Plan to grab a few extra M4 screws from your hardware bin before you start. For the price, though, it’s hard to argue with a 58 inch reach.

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4. Sigerio Compact Router Circle Jig — Best for Compact Router Owners

BEST FOR COMPACT ROUTERS

Pros

  • Direct bolt-on fit for Bosch Ridgid Milwaukee and DeWalt compact routers
  • No adapters or drilling required for most popular models
  • Lightweight aluminum die-cast body is rigid without bulk
  • Adjustable radius guide covers 5.5 inch to 30 inch circles
  • Locks on in seconds with rock-solid pivot

Cons

  • Limited to compact routers within stated hole spacing
  • May not fit routers outside the 2.36 inch to 3.94 inch diagonal
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If you own a Bosch Colt, DeWalt DCW600, Milwaukee M18 compact router, or Ridgid trim router, this is the jig I’d recommend first. The Sigerio compact router jig bolts directly to the router base without any adapters. No drilling, no custom plates. I mounted it on a Bosch Colt in under two minutes.

The 5.5 inch to 30 inch range covers the bulk of small-router work: inlays, sign blanks, cabinet door cutouts, and medium-sized decorative discs. The aluminum die-cast body is rigid without being heavy, so the router doesn’t fight you as you sweep around the pivot. I noticed less drift on long cuts compared to the cheaper plastic jigs in this roundup.

Router Circle Cutting Jig for DeWalt/Bosch/Milwaukee Compact Routers – 4 in 1 Adjustable Router Jig, Aluminum Alloy Circle Cutting Guide for Trim Routers, 5.5–30

What makes this jig different from a universal-fit jig is the engineered fit. The mounting holes line up perfectly with the listed router models, so the pivot point sits exactly where it should. That precision matters when you’re cutting circles that need to mate with another part, like a speaker ring or a recessed lid.

Router Circle Cutting Jig for DeWalt/Bosch/Milwaukee Compact Routers – 4 in 1 Adjustable Router Jig, Aluminum Alloy Circle Cutting Guide for Trim Routers, 5.5–30

Compatibility and fit considerations

Sigerio lists compatibility with Bosch, Ridgid, Ryobi, Milwaukee, and DeWalt compact routers. The diagonal hole spacing needs to fall between 2.36 inch and 3.94 inch for a direct fit. If you’re running a less common router, measure your base before ordering. The setup also handles grooves and rabbets, so it’s a useful all-around jig if you already own one of the supported compact routers.

What to watch out for

If your router isn’t on the supported list, this jig won’t work without modification. The aluminum die-cast design also means the jig is rigid in the right direction but can feel heavy on a small trim router. For long sessions on small circles, take breaks so your hand doesn’t fatigue. Overall, for the price and the fit, it’s a strong value for anyone running a Bosch Colt or DeWalt DCW600.

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5. Jasper 290 Circle Jig — Wood Magazine’s Only Grade A Pick

TOP RATED

Pros

  • WOOD Magazine's only Grade A rated circle jig
  • 268 calibrated sizes from 1 1/2 inch to 18 3/16 inch
  • CNC-machined pivot holes for repeatable accuracy
  • Standard and PRO models let you choose material and price
  • Fits most compact trim and cordless routers

Cons

  • Not compatible with full-size plunge routers
  • Requires router compatibility check before ordering
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The Jasper 290 is the newer sibling to the Model 200, and it’s the only jig in this roundup that earned WOOD Magazine’s Grade A rating. The 268 calibrated sizes cover almost every circle you’d want to cut on a compact router, and the CNC-machined pivot holes give you a precision that stamped jigs can’t match. If you cut circles in your shop every week, this is the one I’d point you toward.

The big difference between the 290 and the older 280 is broader router compatibility. The 290 fits Bosch Colt and GFK series, DeWalt DCW600 and DWP611, Makita RT0701CX7, Porter-Cable, Ridgid, Ryobi, and most other compact routers on the market. Jasper publishes a compatibility chart, and I cross-checked three of my test routers against it. All three were on the list.

Jasper 290 Circle Jig - WOOD Magazine Grade A (ONLY Grade A) | 268 Circles 1½

The Standard model uses hardened acrylic and the PRO model uses industrial-grade polycarbonate. I tested the Standard model and it held up to deep cuts in 3/4 inch plywood. The PRO model is for users who push their jig hard daily. Either way, the calibration disc makes setup fast and the pivot pins are replaceable if you strip one.

Jasper 290 Circle Jig - WOOD Magazine Grade A (ONLY Grade A) | 268 Circles 1½

Why the Grade A rating matters

WOOD Magazine has been reviewing jigs for over 30 years, and the Grade A designation is their top mark. In the roundup test, the 290 beat competing jigs on cut accuracy, repeatability, and ease of setup. The pivot pin holes are drilled with CNC tolerance, so the radius you set is the radius you cut. For shop-grade work, that precision is worth the price difference over a generic import.

What to verify before buying

The 290 is built for compact, trim, and cordless routers only. If you own a full-size plunge router like the Porter-Cable 450PK or Bosch 1617, you need the Jasper 200 or 240 instead. Also, double-check the compatibility chart on Jasper’s site for your specific router model. A router that’s one base-plate revision off may not bolt up cleanly.

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6. Evwoge Circle Cutting Jig — Most Versatile Universal Mount

MOST VERSATILE
Evwoge Circle Cutting Jig for Routers/Trimmers Electric Hand

Evwoge Circle Cutting Jig for Routers/Trimmers Electric Hand

★★★★★★★★★★4.2 / 5

Range: 20mm to 690mm

Bakelite body

Universal mount

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Pros

  • Universal compatibility with most routers and trimmers
  • Cuts circles from 20mm up to 690mm in diameter
  • Bakelite main body with aluminum adjustment block
  • Comes with comprehensive mounting hardware and accessories
  • Adjustable design lets you drill your own mounting pattern

Cons

  • No instructions included
  • Setup requires drilling custom mounting holes
  • Some included screws may be too short for certain routers
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The Evwoge circle cutting jig is the most universal jig in this roundup. Instead of pre-drilled mounting holes, it ships as a blank platform that you drill to match your specific router base. That sounds like more work, but it also means the jig fits routers that no name-brand jig covers, including older European models and obscure import trim routers.

The cutting range from 20mm up to 690mm (about 27 inches) covers small inlays and medium signs. The bakelite body is heavier than acrylic but stiffer, and the aluminum adjustment block locks the radius with a single bolt. For users who own a less common router and have been frustrated that no jig fits, the Evwoge is the answer.

Circle Cutting Jig for Routers/Trimmers Electric Hand customer photo 1

I tested the Evwoge on a Makita RT0701C and a compact import router I’d struggled to fit on other jigs. The drilling took about 10 minutes with a center punch and a small drill bit. Once mounted, the jig worked exactly like a brand-name jig, and the bakelite body didn’t flex during a deep cut in 3/4 inch plywood.

Circle Cutting Jig for Routers/Trimmers Electric Hand customer photo 2

What’s in the box

The Evwoge ships with a drill bit, wrench, limit ring, positioning rod, fixed body, mounting screws, aluminum adjustment block, adjustment handle, center positioning ring, and milling center slot bolt. That’s everything you need to mount the jig on virtually any router. The bakelite construction is also more chemical-resistant than acrylic, so it holds up if you accidentally get glue or solvent on it.

Who should skip it

If you want a jig that works out of the box with clear instructions, the Evwoge will frustrate you. There’s no instruction sheet, and the included screws don’t fit every router. I had to source longer M4 screws from my spare parts bin. For users who are comfortable drilling their own mounting pattern and want universal fit, the Evwoge is a strong value at this price.

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7. Jasper Model 280 Circle Guide — Engineered Fit for Plunge Base Routers

BEST FOR PLUNGE BASES

Pros

  • Engineered for exact geometry of specific compact plunge routers
  • 268 calibrated sizes from 1 1/2 inch to 18 3/16 inch
  • Hardened acrylic construction holds up to repeated cuts
  • WOOD Magazine Grade A rated jig
  • Three decades of engineering focus on circle guides

Cons

  • Only compatible with specific compact plunge base routers
  • Discontinued in favor of the newer Jasper 290
  • Limited to Bosch DeWalt Makita and Porter Cable models
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The Jasper Model 280 is the predecessor to the 290, and it’s still a strong pick if you own one of the supported compact plunge routers. Jasper engineered the geometry for specific models: Bosch Colt, GFK, and PR series, DeWalt DW611PK and DCW600B with DNP612, Makita RT0701CX7 and XTR01Z, and Porter-Cable PC450PK with plunge base. If your router is on that list, the fit is essentially perfect.

The 268 calibrated sizes in 1/16 inch increments give you the same fine adjustment as the 290, and the hardened acrylic body is the same construction Jasper has used for years. I tested the 280 on a Bosch Colt, and the jig bolted up without any shimming or modification. The pivot pin sat exactly where it needed to, and the cut was as accurate as any Jasper jig I’ve used.

Why a router-specific jig matters

Universal jigs compromise fit to fit many routers. Router-specific jigs like the 280 have their pivot pin holes drilled for the exact base geometry of the listed router, so the radius you set is the radius you cut without any slop. For users who care about tight tolerances and own a supported router, this precision is worth the price difference over a universal jig.

The big caveat: it’s discontinued

The Model 280 has been replaced by the Jasper 290, which has broader router compatibility and the same Grade A rating. But for new buyers, I’d recommend the Jasper 290 unless you’re specifically looking for a deal on the older model. Both share the same 268 calibrated sizes and CNC-machined pivot holes.

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8. Jasper 240 Router Circle Cutting Jig — Award-Winning Classic for Plunge Routers

AWARD WINNER

Pros

  • Voted number 1 by WOOD Magazine as the top circle jig
  • 276 repeatable sizes from 1 inch to 18 3/16 inch in 1/16 inch steps
  • High-strength acrylic construction built to last
  • Compatible with 47 plus standard plunge routers
  • Includes calibration disc pivot pins and hardware

Cons

  • Not for compact cordless or trim routers
  • larger footprint needs shop space
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The Jasper 240 is the original award-winning circle jig, voted number 1 by WOOD Magazine, and it’s still the go-to choice for full-size plunge router owners. It cuts 276 calibrated sizes from 1 inch up to 18 3/16 inch in 1/16 inch increments, and it fits 47 plus plunge routers including Porter-Cable, Bosch, DeWalt, Makita, and Ridgid. For a workshop with a full-size router, this is the workhorse.

The 240 sits between the Model 200 and the Model 290 in Jasper’s lineup. It has more size options than the 200, broader router compatibility than the 280, and the same high-strength acrylic build as the rest of the Jasper family. I tested it on a Ridgid R2930 and a Bosch 1617, both common full-size plunge routers, and the fit was clean on both.

Jasper 240 Router Circle Cutting Jig – Precision Router Guide for 276 Perfect Circles (1

The calibration disc is what makes Jasper jigs faster to set than the competition. Instead of measuring and re-measuring the radius, you put the disc at the centerpoint of your circle, drop the pivot pin into the calibrated hole, and you’re ready to cut. The acrylic arms are stiff enough for full-depth cuts in hardwood, and the pivot pin holes don’t wallow out over time.

Why the 240 has stayed on top for years

The Jasper 240 has been a top pick in WOOD Magazine’s reviews for over a decade. The combination of 276 calibrated sizes, broad router compatibility, and durable acrylic construction hits the sweet spot for full-size router owners. If you already own a plunge router and want a jig that will outlast your other tools, this is the one to buy.

Where the 240 doesn’t fit

The 240 is built for full-size plunge routers only. If you own a compact, cordless, or trim router, you need the Jasper 280 or 290 instead. Also, at 18 3/16 inch, the 240 tops out below the larger diameter jigs like the Sigerio 4-in-1. For most shop projects, that’s plenty. But if you need to cut circles larger than 18 inches, you’ll need to pair the 240 with a larger jig.

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How to Choose the Best Circle Cutting Jig for Your Shop

Choosing the best circle cutting jig comes down to three questions: what router do you own, what diameter do you need, and how often will you cut circles. Get those right and the rest is easy. Get them wrong and you’ll either overpay for capacity you don’t need or under-buy and end up frustrated. Here’s the framework I use when I recommend jigs to other woodworkers.

Router type matters more than anything else

Compact and trim routers need a different jig than full-size plunge routers. The Jasper 200 and 240 are designed for plunge routers like the Porter-Cable 450PK and Bosch 1617. The Jasper 280 and 290 are engineered for compact routers like the Bosch Colt and DeWalt DCW600. The Milescraft 1219 and Sigerio jigs cover both worlds with their universal-fit designs. Buying the wrong jig for your router is the number one mistake I see, and it usually ends with someone returning the jig and buying the right one a week later.

Diameter range and one-pass cutting

The diameter range tells you what you can cut. Most jigs in this roundup cover 1.5 inch to 18 inch, which handles the bulk of speaker, sign, and inlay work. If you need circles larger than 24 inches, look at the Sigerio 4-in-1 (up to 58 inch) or the Milescraft 1219 (up to 52 inch). One-pass cutting is a related feature: a jig with rigid arms and a stiff pivot lets you cut 3/4 inch material in a single pass instead of multiple light passes.

Build material: acrylic versus aluminum versus polycarbonate

Acrylic jigs are lighter and cheaper but can flex on heavy cuts. Aluminum jigs are stiffer and more durable but heavier. Polycarbonate is the premium choice: stiffer than acrylic, lighter than aluminum, and more impact-resistant. The Jasper PRO models use polycarbonate for users who push their jig daily. For weekend DIYers, hardened acrylic is plenty. For daily shop use, upgrade to aluminum or polycarbonate.

Ellipse and circle capability

Some jigs cut both circles and ellipses. If you need to cut oval table tops, elliptical inlays, or curved cabinet doors, look for an ellipse jig or a circle jig with an ellipse accessory. The Rockler Ellipse/Circle Jig is the most popular dedicated ellipse jig, but most circle jigs can be adapted for ellipses with extra hardware. If you only need circles, skip the ellipse feature and save money.

DIY versus buying a jig

You can build a DIY circle jig from plywood, a dowel, and a screw. It works for one-off cuts. But once you need to cut the same circle more than twice, or you need 1/16 inch precision, a commercial jig pays for itself. I built my first DIY jig for a single speaker cutout and used it once. After that, I bought a Jasper 200 and never looked back. If you only need one circle, DIY. If you need five or more, buy.

Router bit pairing recommendations

The best router bit to use with a circle cutting jig depends on the material. For plywood and MDF, a spiral upcut bit gives clean cuts and good chip evacuation. For hardwood, a flush trim bit with a bearing follows the jig’s guide bushing perfectly. For decorative cuts, a 1/4 inch pattern bit lets you cut shallow mortises for inlays. Pair your jig with the right bit and you’ll get clean edges with no tear-out.

Stopping jig slippage on the workpiece

The number one complaint I see on Reddit and woodworking forums is jig slippage during the cut. The pivot pin holds the jig in place at the center, but the router itself can drift if the workpiece isn’t secured. Use double-sided carpet tape under the workpiece, bench cookies to elevate it, or a non-slip mat on your workbench. A sacrificial backer board also prevents tear-out on the bottom of the cut.

Frequently Asked Questions

What is a circle cutting jig and how does it work?

A circle cutting jig is a router accessory that acts like a compass: a pivot pin fixes the jig’s center to your workpiece, and a guide arm slides the router bit along an exact radius so you cut a perfect, repeatable circle. You anchor the pivot pin, set the guide arm to your desired radius, then run the router around the pin so the bit sweeps an exact arc.

What is the best tool for cutting circles in wood?

For most shop work, a plunge router paired with a circle cutting jig is the best tool for cutting circles in wood. A bandsaw with a circle jig works for thicker material where the body of the saw can stay stationary. A jigsaw can rough out circles, but the edges need sanding and the radius is rarely true.

What is the most effective way to cut circles in wood?

The most effective way to cut circles in wood is to use a router with a circle cutting jig, a spiral upcut or flush trim bit, and a sacrificial backer board. Steps: 1) Mark the center of your circle. 2) Drill a pilot hole for the pivot pin. 3) Set the jig’s radius using the calibration disc. 4) Make a shallow first pass to establish the cut. 5) Make a full-depth second pass for a clean edge.

How accurate are router circle jigs?

Quality router circle jigs like the Jasper 200 and 240 are accurate to within 1/16 inch or better. The CNC-machined pivot holes on Jasper jigs and the calibrated size scales on Milescraft jigs ensure that the radius you set is the radius you cut. Cheaper jigs with stamped pivot holes can drift by 1/8 inch or more on deep cuts.

What is the best router circle cutting jig?

For most woodworkers, the Milescraft 1219 is the best router circle cutting jig because it covers 1.5 inch to 52 inch, includes a 13 inch offset base, and fits most routers. For full-size plunge routers, the Jasper 240 is the award-winning classic. For compact routers, the Jasper 290 is WOOD Magazine’s only Grade A pick.

What is the best way to cut a perfect circle with a router?

To cut a perfect circle with a router: 1) Use a circle cutting jig with CNC-machined pivot holes. 2) Drill the pivot hole exactly at the center of your circle. 3) Set the radius with the calibration disc. 4) Take a shallow first pass (about 1/8 inch) to establish the cut. 5) Take a second pass at full depth for a clean edge. 6) Sand the edge with 120 then 220 grit.

What type of router bit should I use to cut a circle?

For most circle cuts in plywood or MDF, use a spiral upcut bit for clean cuts and good chip evacuation. For hardwood and clean edges, use a flush trim bit with a bearing that follows the jig’s guide bushing. For shallow decorative cuts and inlays, use a 1/4 inch pattern bit. Avoid straight bits because they can cause tear-out on circle cuts.

Final Verdict: Which Circle Cutting Jig Should You Buy?

After testing all 8 circle cutting jigs in this roundup, the Milescraft 1219 is the best circle cutting jig for most woodworkers in 2026. Its 1.5 inch to 52 inch range covers every project from speaker cutouts to tabletops, the turn-n-lock head swaps bushings without tools, and the included 13 inch offset base adds stability on the larger cuts. It’s the one I’d buy if I could only own a single jig.

If you run a full-size plunge router and want the classic award-winning workhorse, the Jasper 240 has been a top pick for over a decade and shows no signs of slowing down. For compact router owners, the Jasper 290 earned WOOD Magazine’s only Grade A rating and fits nearly every trim router on the market. And if you need circles larger than 24 inches, the Sigerio 4-in-1 covers up to 58 inches at a budget-friendly price.

For more tools that make workshop projects easier, check out our guide to the 8 Best Die Cutting Machines. The right jig turns a frustrating wobble into a clean, repeatable cut, and any of the eight jigs in this guide will do that for you. Pick the one that matches your router and your most common project size, and you’ll wonder how you ever worked without it.

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