A lock miter bit creates an interlocking joint for solid wood boxes and columns. The joint offers plenty of glue surface, and our bits are available for 45-degree and 90-degree joints.
Depending on the size of the bit (small, medium or large), you can make lock miter joints in stock from 1/2" to 1" thick. These bits are designed solely for use in a router table. Do not install a lock miter bit in a handheld router.