[Steven Dufresne], Hackaday writer and the mad scientist behind Rimstar.org, kindly documented how to safely and reliably remove the chuck from a drill motor. You may think this is easy ...
Its best suited for a 1/4 or 3/8-inch drill chuck since it has a 1/4-inch (round) shank diameter. Since these are common sizes, they can be used for a wide variety of countersink projects.
Its tiny size and adjustable speed seemed ... The drill came with 6 collets of various diameters, but no chuck. We bought the collet-compatible drill bit in the photo at the local electronics ...
Chuck The hole into which you slot the drill bits or other accessories. Most cordless drills have a chuck size of either 10mm (3/8 inch) or 13mm (1/2 inch). Most are keyless, which lets you tighten ...