Not to get off topic, but there is something else of note in SpaceMouse’s pic of the countersink bit. The pilot bit is tapered. For drilling pilot holes for wood screws, tapered bits are fantastic. Bought a couple (#6, #8, #10) at Home Depot. Was a little skeptical if they were worth the price. After driving my first screw, I’m glad I bought them. It solves the problem of the pilot not being large enough at the top or too wide at the end.