threaded drill guide 5/8-11

[Frank S]

When you need to match drill a hole that is already threaded sometimes the easiest way is to make a simple drill guide
I normally only use Grade 8 bolts on many of my projects but for a guide such as this I couldn't justify ruining one of my good bolts for it.
I used a 5/8-11 1 1/2 " long bolt by chucking it in the lathe and drilling a 1/4" hole through the length.
My first plan was to make a 1/4" transfer punch to locate the holes in the part I was working on then decided why take more steps than needed just use it as a drill guide to center drill my mark