Drilling guides
Thin spiral drills are used to drill small guide holes, since the feather drills rarely have the size of the label (about mm. You can, of course, make a pen for yourself a drill with a sharpening machine.
Drilling guides
Thin spiral drills are used to drill small guide holes, since the feather drills rarely have the size of the label (about mm. You can, of course, make a pen for yourself a drill with a sharpening machine.