Champion DT22HEX-SET10 Combination Drill and Tap Set, 10-Piece

Tapered neck design significantly reduces drill & tap breakage | The 135 degree split point drill permits holes to be cut at high speeds. Taping caution must be adhered to with slower speed. | Superior strength durability provided by high Molybdenum content and high speed steel with functional black and gold surface treatment that holds lubricant for smoother drilling. | Applications include: Construction, Electrical, Maintenance, Industrial, Automotive, Farm Implement Machinery, HVAC. Cuts steel, cast iron, aluminum, bronze, brass, zinc and some stainless steel. | Contents include: 6-32, 8-32, 10-24, 10-32, 12-24, 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13