Drilling holes for woodscrews usually requires the use of a couple of different-sized bits. I use a smaller bit for the pilot hole. And then I use another size of bit with a countersink for the shank hole. The trouble is trying to remember which bit goes with which screw. To solve this problem, I built this countersink caddy. The caddy is portable and has several holes for storing different sized bits with countersinks (#6, #8, #10, and #12), corresponding pilot bits, and an Allen wrench. I drilled an additional row of countersunk holes along the front. Then I ripped away the front edge so I could tell at a glance which bit to use for each screw size.