Locate the EXACT CENTER of your board
Setup lock miter bits with ease
No measuring or guesswork
I finally found out what the magic number is and how to find it on Lock Miter bits not listed in the manual.This tool and the 2 axis depth gauge work in perfect tantum. i bought the groove center and it sat along with my bits for almost 6 months i was discussed.Than i went on a mission for about a week looking for a simple solution.Well one video on YOUTUBE talked about measuring the tung and groove at the carbide on any bit and add them together (I use MM to do this) Divide by 4 and you have the Magic number.I tried it on 3 different manufactured Bits and 3 sizes of material.And every sample came out perfect the first time. I kept the samples and marked them with the bit and the magic number Tony Liberati on May 23rd 2016