In one step, you can drill, countersink and counter bore the perfect sized hole for #4, #6, #8, #10, or #12 screws.Snappy Tools Countersinks will drill the pilot hole and countersink or counter-bore for screws in one step. Countersink to drive the head of the screw flush with or slightly below the surfaceIdeal for plugs or dowel buttons. The 1/4″ hex shank can be used with power drills and quick-change chucks.Experience the higher quality of Snappy Tools. Combining higher quality materials and patented technology, Snappy delivers industrial quality tools to the tradesman and do-it-yourself markets at an affordable price.Made in USA by Snappy; Includes 5 Gold Screw Countersinks: 5/64×3/8, 3/32×3/8, 7/64×3/8, 1/8×3/8 & 9/64×1/2 and a belt clip pouch