Best Rabbet Bit for CNC Router (2026)

Specs compared

Specifications are manufacturer rated, as published on each listing and collected 21 October 2026.

Buying guide: the best rabbet bit for cnc router

Shank size

Most bits here use a 1/4 in shank; the FivePears example uses a 1/2 in shank, which suits routers with a 1/2 in collet. The WSOOX listing needs a note: its title says 1/4 in shank while its bullets and spec table say 1/2 in shank, so check the listing before you buy. The MEIGGTOOL example warns to check your router’s shank size before ordering, which is good advice for all of them.

Depths and bearings

Rabbet bits change depth by swapping the guide bearing. The sets here cover 1/8 to 1/2 in (WSOOX and FivePears), 1/16 to 7/16 in (MEIGGTOOL), and up to 1-1/8 in (Newdeli), with four cutting heights from 1/8 to 1/2 in on the MEIGGTOOL and Newdeli sets. Pick the range that matches the rabbets you actually cut; the widest range is not a win if you only ever cut one depth.

Speed and feed

Only some listings state speeds. The FivePears example lists a maximum of 18000 RPM, the Newdeli example says to keep RPM at or under 16000, and the MEIGGTOOL example gives 18000 to 24000 RPM with a feed speed of 8 to 12 m/min. Run within the listing’s figures and slow down until the cut is clean.

Carbide and coating

The makers describe YG8 carbide steel (WSOOX, Newdeli), tungsten carbide inserts (FivePears), solid carbide (Jiiolioa) and carbide with a Teflon or nano blue coating. Coatings are meant to resist chip and resin buildup; the MEIGGTOOL example also calls out heat resistance and toughness. No listing here gives a hardness figure beyond these descriptions.

Materials

The WSOOX and Newdeli examples name wood, MDF, particle board, plywood, acrylic and wood composites, and both state CNC and automatic router compatibility. The Newdeli listing adds a warning to avoid cutting metal and non-wood materials. The Jiiolioa end mills are listed for wood cutting, carving and engraving.

For more bit reading, see the best CNC router bits guide, the 1/4 vs 1/2 shank router bits comparison and the best spiral router bits for hardwood.

Project Match

• Cabinet carcasses and panel glue-ups: the Newdeli 4Pc Rabbet, with 6 bearings covering depths to 1-1/8 in and 4 cutting heights, suits biscuit-style joining of cabinet parts.
• Quick edge rabbets with one bit: the FivePears Rabbet Bit, with a 1/2 in shank and 6 bearings for 1/8 to 1/2 in depths, fits most full-size routers.
• Fine depth steps and stated speeds: the MEIGGTOOL 4Pc Rabbet, with bearings from 1/16 to 7/16 in and stated feed and spindle figures, suits careful joinery.
• Dados, grooves and rabbets without a bearing: the Jiiolioa Up-Cut Mill, a pair of spiral up-cut end mills in solid carbide.
• Set materials listed: the WSOOX example names wood, MDF, particle board, plywood, acrylic and composites; other listings state fewer materials.

How the scores add up

Each bit is scored on performance, build, value, safety and warranty, with the weights published on our How We Pick page. No bit here states a laser class or safety listing, so the safety column reflects stated safety-relevant features only; a spec the listing does not publish scores nothing.

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.

FAQ: lasers and CNC

Can I use a rabbet bit on my CNC router?

The WSOOX and Newdeli listings state compatibility with CNC and other automatic routers as well as hand-held and table-mounted portable routers. Check your spindle or router’s shank size against the bit first; the MEIGGTOOL example warns against ordering the wrong shank.

What is the difference between a rabbet bit and an end mill?

A rabbet bit is bearing-guided: the bearing rides the board’s edge and sets the rabbet depth. The Jiiolioa example here is different, a pair of spiral up-cut end mills in solid carbide that cut dados, grooves and rabbets without a bearing, by toolpath.

How much of the shank must be in the collet?

Follow each listing. The FivePears example says 3/4 of the shank must be inserted and tightened securely, and the Newdeli example says to clamp at least 2/3 of the shank. Short clamping can bend the bit, per both listings.

What speeds should I run a rabbet bit at?

Use the listing’s own figures. The FivePears example lists a maximum of 18000 RPM, the Newdeli example keeps RPM at or under 16000, and the MEIGGTOOL example gives 18000 to 24000 RPM with a feed of 8 to 12 m/min. The WSOOX and Jiiolioa examples state no speed figures.

Can these bits cut metal?

The Newdeli listing says to avoid cutting metal and non-wood materials. The examples here are listed for wood, MDF, particle board, plywood, acrylic and wood composites; none states a metal rating.

Related: best CNC router bits, best CNC router bits for hardwood, 1/4 vs 1/2 shank router bits, best spiral router bits for hardwood, and best router bits for raised panel doors.