Irwin Industrial Tools 43074 4-5/8-Inch Self Feed Bit

585-43074 Features: -For drilling large diameter holes in wood for pipe, conduit and other applications.-Replaceable coarse screw point drills quickly in dry, wet, and gummy wood.-Precision milled shank eliminates runout and wobble.-Forged in one piece from high carbon steel for maximum strength under tough drilling conditions.-Ideal for pipe and conduit systems.-Point Shape: Screw+Multi-Cutter.-Shank Size Symbol: 7/16 in. Hex.-Shank Type: Quick-Change.-Spiral Angle: CW.-Type: Wood Bit.-Price is for 1 Bit. Dimensions: -All bits have a 7/16'' hex quick change impact shank that fits 1/2'' or larger electric drills or 7/16'' hex impact wrench drills.