Irwin 1869387 WeldTec Self-Feed Bit 1-3/4-in.

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Welded cutting edge for extreme life in tough materials, including nail-embedded wood Replaceable screw-point tip is larger and more durable and pulls bit fast for clean, true hole s 7/16" hex impact shank reduces slipping in standard chucks and is compatible with all 7/16" impact wrench chucks Precision milled shank eliminates runout and wobble Forged in one piece from high carbon steel for maximum strength under tough drilling conditions Show more