Hinge Slotting With a Drill

The drill block can be metal or a really hard wood such as maple, and the secret to accuracy is to use a drill press and a machine vise. Better still, can a machinist friend make blocks of several thicknesses for you? (where “t” is, say, ¼-inch, 5/16-inch, and 3/8-inch). Put the appropriate drill block against the trailing edge, then use a 1/32nd-inch drill bit to make closely spaced holes that will be neatly on...