6 Piece Combined Drill Tap and Countersink Set with 1/4" Quick Change Hex Shank Live Threaded shank drill bits are

Threaded shank drill bits are type D adapter style

Part Number D/ARSD55/64

Part Number ANC5-530-339

Part Number ANC5-530-230

6 Piece Combined Drill Tap and Countersink Set with 1/4" Quick Change Hex Shank Live Threaded shank drill bits areProduct Description 6 Piece Set Includes Sizes: 6 32 NC, 8 32 NC, 10 24 NC, 10 32 NF, 12 24 NC and 1 4 20 NC. Combination Drill Bit, Tap and Countersinks streamline your work by drilling a hole, tapping threads, and creating a countersink in one easy step. This all in one functionality ensures screws sit flush with the surface, preventing material swelling and providing a clean, professional finish. Made from high speed steel with a bright finish,