As I work my way throught the build of the Kerzel engine, I find that there are a number of places in both the sparkplug and the carburetor where it is required that I drill 1/32" diameter holes. Now I have any number of 3 jaw chucks that I have accumulated around here, but NONE of them close up to 1/32" diameter. I bought a "Pin Chuck" from BusyBee Tools, but it is as useless as feathers on a pig---You chuck up anything in it, then watch the damn thing orbit, other than rotate. No concentricity at all, no matter what you do.--You can see it in the picture---It worked great for hand lapping my engine valves, as a handle, where concentricity didn't matter. I remembered that I had an old 16 volt cordless drill shoved away in a junk drawer. I never replaced the batteries after they wore out, because you can buy a brand new cordless drill complete with batteries cheaper than batteries alone. I checked, and although the chuck is keyless, it did indeed close right down to zero when tightened up. After much bashing, smashing, removal of screws and circlips, and skinned fingers, I liberated the chuck, which has a nice .526"??? diameter shank on it about 2" long--Very weird diameter, not anything standard in metric or Imperial, but it fits into any of my OTHER 3 jaw chucks. The second picture shows it with a 1/32" drill in its jaws, and it rotates true as a die.
