Whiteside 45 Degree Lock Miter Bit

miter bit

The 45 Degree Lock Miter Bits from Whiteside are some of the most useful bits in your shop. Virtually anywhere you could use a miter, you could use a lock miter bit to create a beautiful joint that is strong and very easy to assemble. Not only does this cutter create a perfect 45 degree cut, but it also adds a tongue and groove element that strengthens the joint and makes assembly a breeze.


The 45 degree lock miter joint is created by running both pieces of stock through the same cutter, using the same setup. One board is fed through vertically, and the second will be fed through horizontally.

Why not use this bit on your next project? Humidors, jewelry boxes, drawers, hollow columns or almost any other project with squared corners can go from nice to jaw dropping by incorporating this joint.

Whiteside Router Bits are one of the few brands still made in the U.S.A. Their attention to quality of materials and expert brazing and grinding technologies has made them a furniture industry favorite since the early 70's.

Available in 1/2" shank only. Carbide Tipped. Made in the U.S.A.

45 Degree Lock Miter - 3 1/8" diameter
(for stock thickness 1/2"-1 1/4")

45 Degree Lock Miter - 2" diameter
(for stock thickness 1/2"-3/4")