A long time ago, in an issue far, far away…the May 2014 issue of KITPLANES, to be exact…The Home Shop Machinist covered the ins and outs of using the Quantum jig to DIY drill bolt heads for safety ...

If you’re having trouble making straight holes with your handheld power drill, an old CD can make for a cheap and effective guide. You can buy a dedicated drill guide at your local hardware store, but ...