This is pretty simple but I hadn’t thought of it before. Maybe someone else can use this little tip. When I was making the adjustable jaws for my school chevys, I needed to locate some insert nuts really accurately so the jaws wouldn’t bind. The slot in the jaw is 1/4” but the hole for the insert nut needs to be 3/8”.
I’m sure there are lots of good ways to do this but here’s what I did. It was really easy and absolutely accurate.
First I marked with a brad point 1/4” bit.
Then I drilled the hole with a 3/8” Forstner bit. The brad hole was a perfect locator.
The fit is perfect and everything slides smoothly.
This is so simple that I almost didn’t post it but then the series is called ”Simple Jigs and Techniques” and besides I had not thought of it before. ......... maybe you didn’t either… :-)
Thanks for looking in.
-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees. http://thecanadianschooloffrenchmarquetry.com/