Dovetail vs Finger Joint Router Bit: Which Should You Buy?

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Dovetail vs finger joint router bit: the short answer

Dovetail bits cut flared, angled tails, 10 degrees on the YAKAMOZ set and 14 degrees on the Freud 22-124, that wedge together and resist pulling apart. Finger joint bits cut straight square fingers with parallel sides, so the joint slides together along the finger direction and relies on glue surface for strength. When the joint must hold against a pulling force, as in a drawer front, the dovetail is the stronger shape; when speed and simplicity matter more, the finger joint is the easier cut.

What a dovetail bit cuts

A dovetail bit mills the flared tail and the matching pin socket, one pass for each side of the joint. The listings here show the working range: cutting diameters of 1/2 inch and 5/8 inch, a 10-degree cutting angle on the YAKAMOZ bits and a 14-degree angle on the Freud, with two carbide flutes on three of the four bits. Makers list furniture building, cabinet making, drawers, boxes and chests among the uses. Because each tail is wider at the tip than at the base, the assembled joint cannot pull straight apart the way a straight finger can.

What a finger joint bit cuts

A finger joint bit, sometimes sold as a box joint bit, cuts straight fingers of even width with square shoulders. The fingers interlock with generous glue surface on every face, which makes the joint strong in shear but dependent on glue to hold along the finger direction. Layout is fast, since every finger matches every slot and there are no angled pins to fit. It suits carcass corners and shop boxes where the joint will not see much pulling force.

Which joint should you choose

Match the joint to the load. Drawer boxes, chests and cabinet doors get opened, pulled and racked, so the mechanical lock of the dovetail earns its extra setup time. Simple boxes, drawer dividers and shop storage see little pulling force, so the finger joint’s single setup and fast glue-up win on speed. The table below sums up the trade-off.

Joint	Bit shape	Holding power	Layout effort
Dovetail	Flared tails, 10 or 14 degrees here	Resists pull-apart	Matched pins and tails
Finger joint	Straight square fingers	Glue-dependent	One setup cuts both sides

Four dovetail bits, ranked by stated specs

The four bits below appear in ranked order, from the most complete stated spec set to the thinnest. All four cut dovetail joints; none of the listings describes a finger joint bit.

Bit	Cutting diameter	Shank	Angle	Guide bearing	Set size
YAKAMOZ Dovetail 2-Pc Set	1/2 in, 5/8 in	1/4 in	10 degrees	Yes	2 bits
KOWOOD Dovetail 2-Pc Set	1/2 in, 5/8 in	1/4 in	Not stated	Yes	2 bits
Freud 22-124 Dovetail Bit	1/2 in	1/4 in	14 degrees	Not stated	1 bit
Yonico 14520 5-Bit Set	1/2 in	1/2 in	Not stated	Not stated	5 bits

The YAKAMOZ set tops the ranking: two bits with 1/2-inch and 5/8-inch cutting diameters, a 10-degree angle, 1/4-inch shanks and a bearing guide on each, with cutting lengths of 1/2 inch and 5/8 inch stated. The KOWOOD set runs second with the same two cutting diameters and bearing guides on a 1/4-inch shank, in heat-treated C3 carbide, listed for wood, MDF, laminate, particleboard and plywood. The Freud 22-124 comes third as a single 1/2-inch bit at 14 degrees with a Perma-SHIELD coating, a 1/4-inch shank and 2-5/8-inch overall length, listed for CNC, handheld and table-mounted routers. The Yonico 14520 set lands fourth: five dovetail bits on 1/2-inch shanks in C3 micro-grain carbide, though its spec table says Number of Items 1 against a 5-bit title, and the title and bullets win that disagreement.

Setting up the cut

Match the shank to the collet before anything else: three of these bits use a 1/4-inch shank and the Yonico set uses a 1/2-inch shank. The 1/4 vs 1/2 shank router bits comparison explains the trade-off. Bearing-guided bits like the YAKAMOZ and KOWOOD follow an edge or template, while the Freud and Yonico bits need a fence or jig for guidance. For machine work, the best dovetail bit for CNC picks cover bits proven on routers with computer control. Clamp the workpiece, wear eye protection, and switch the router off before changing bits.

FAQ: lasers and CNC

Can a dovetail bit cut a finger joint?

No. Dovetail bits cut flared, angled tails, 10 degrees on the YAKAMOZ set and 14 degrees on the Freud, while a finger joint needs straight-sided fingers. The two shapes are not interchangeable.

What shank size do these dovetail bits use?

The YAKAMOZ, KOWOOD and Freud bits use a 1/4-inch shank. The Yonico 14520 set uses a 1/2-inch shank.

Do I need a bearing guide on a dovetail bit?

Not always, but it helps. The YAKAMOZ and KOWOOD sets include a bearing guide on each bit. The Freud and Yonico listings state no bearing, so those bits need a fence or jig.

Can these bits run in a CNC router?

The Freud, Yonico and KOWOOD listings state use in CNC routers as well as handheld and table-mounted routers. The YAKAMOZ listing names furniture and cabinet work without stating CNC use.

What dovetail angle do these bits cut?

The YAKAMOZ bits cut a 10-degree angle and the Freud 22-124 cuts a 14-degree angle. The Yonico and KOWOOD listings state no angle.

Related: the CNC tooling hub, best dovetail bit for drawer boxes and best dovetail bit for CNC. Also see the best CNC bit set for woodworking.