Infinity Tools Lock Miter Master Jigs

Set Up Perfect-Fitting 45° Lock Miter Joints In Minutes!

Lock Miter Master Jigs

Our patented Lock Miter Master Jigs are a precisely-machined setup aid for use with lock miter router bits in your router table. Unlike setup blocks, the Lock Miter Master Jigs allow you to set the fence position and router bit height for the specific piece of wood you’re working with. The Lock Miter Master Jigs require virtually no test cuts. With these jigs you can quickly and easily set the proper bit height and fence position for precise-fitting lock miter joints. The jigs attach securely to the lock miter router bit with rare-earth magnets. They are precision-milled with laser-engraved reference lines that make it easy to set the bit and fence for perfect cuts.

Features include:

Small jig (LMM-002) works with stock from 3/8″ to 3/4″ thick

Large jig (LMM-003) works with stock from 5/8″ to 1-3/16″ thick

Incredibly versatile, works with uneven stock thickness to make non-standard joints

Precision CNC-machined from aluminum

Red anodized for durability and visibility

Attaches securely to the lock miter router bit with rare-earth magnets

Fast and easy to use – most first attempts will result in a perfect joint

Works with most brands of locking miter router bit

US Patent No. 9,682,492