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Feature
Drill bits have 3 cutting edges that are hardened for durability and long life in tough materialsReplaceable screw-point tip pulls the drill bit fast for clean, true holes
Drill bit has an aggressive screw pitch
7/16-inch hex quick-change impact shank reduces slipping in standard chucks
IRWIN drill bits are compatible with most 7/16-inch impact drills
3X the cutting area and edges of standard self feed bits
7/16-Inch Impact Rated Shank