To solve the problem of uniform primer depth, and to assist the Hart primer pocket cleaner, in the cleaning of primer pockets, use the Hart primer pocket depth reamer. You can attach this to a hand held, or a powered screwdriver. Made of stainless steel, with a carbide cutter, this reamer is fully adjustable. Comes with 1/16″ and 5/64″ Allen wrenches.
(CAUTION: DO NOT use this tool as a primer pocket cleaner)