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Circle jig · Bosch bases

MaKoen POF1214 circle cutting jig

A router cuts a perfect circle or nothing at all. This is the arm that decides which — provided it bolts to your base.

Router circle cutting jig with millimeter scale, product photograph

MaKoen POF1214 circle cutting jig

A router cuts a perfect circle or nothing at all. This is the arm that decides which — provided it bolts to your base.

Radius range
23 mm (0.91 in) to 544 mm (21.4 in), cutter center to pin center
Center pin
Ø 6 mm (0.24 in)
Accuracy
±1 mm (0.04 in)
Scales
Two, in millimeters
Mounting
Bosch POF1200, POF1400 and GOF1250
Part number
POF1214
Availability
No EAN published — other markets could not be verified
Amazon reference
B0BW7FQGQX
  • A radius range from 23 mm (0.91 in) to 544 mm (21.4 in) covers table tops and speaker cut-outs alike
  • Two engraved scales with an arrow showing which one is live
  • The mounting holes fit three named Bosch routers and nothing else

Best for: Round table tops, clock faces and speaker cut-outs on a Bosch plunge router

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Specifications

Radius range
23 mm (0.91 in) to 544 mm (21.4 in), cutter center to pin center
Center pin
Ø 6 mm (0.24 in)
Accuracy
±1 mm (0.04 in)
Scales
Two, in millimeters
Mounting
Bosch POF1200, POF1400 and GOF1250
Part number
POF1214
Availability
No EAN published — other markets could not be verified
Amazon reference
B0BW7FQGQX

Every figure below is a manufacturer specification read off the listing itself. The judgments are ours.

What the specification says

Radii from 23 mm (0.91 in) to 544 mm (21.4 in) measured from cutter center to center pin, a Ø 6 mm (0.24 in) center pin, ±1 mm scale accuracy, two engraved millimeter scales with arrows showing which is in use, and mounting holes for the Bosch POF1200, POF1400 and GOF1250. Part number POF1214. No EAN on the listing.

The mount is the specification

Everything else about a circle jig is geometry, and geometry is easy. What decides whether you can use one is whether it bolts to your router base — hole spacing, thread size, and enough clearance for the plunge columns. This one names three routers, and one of them is reviewed on this site.

Take it in passes

A circle cut in one plunge loads the bit sideways all the way round and pulls the pin. Several shallow passes, dropping the depth between each, keeps the router tracking and leaves an edge that needs no cleaning up.

Availability

No such listing: the American Amazon shop answers the reference with a search box rather than a page.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Saws this fits

What comes up most often

Will it fit a router that is not on the list?

Only by drilling. The jig is defined by its mounting hole pattern, which matches the Bosch POF1200, POF1400 and GOF1250 bases. Other routers use different spacings and different thread sizes. Some owners drill a sub-base to suit; that works, and it is a modification rather than a fitment.

Why does a circle need a jig at all?

Because freehand is not an option and a compass line cannot be followed accurately with a running router. Pinning the router at a fixed radius makes the circle a mechanical consequence of the setup rather than a matter of steering, and it also makes the second circle identical to the first — which matters more than the first one being perfect.

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Elsewhere in the workroom

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