I'm trying to drill straight holes perfectly aligned through a template in wood. The template is 3/4 Baltic Birch plywood. The material being drilled is 1 3/4" Alder and Ash (electric guitar bodies). The holes need to be straight and accurate.
I'm looking for advice. Do I need a steel insert for my template?
Also, there are 3 different size holes in the string through hole in the body:
- the main hole for the string to pass all the way through -1/8"
- the hole for the body of the ferule (grommet) 5/16"
- the hole for the upper rim of the grommet (3/8") so it can be flush mounted.
How would I get all 3 size holes exact with one another?
Attached are pictures of what I'm talking about in a Fender Telecaster
The next post will have just the grommet itself so you can see what I'm talking about with the flush mount.
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