Southwire 4 Piece 7 8 in Woodboring Ship Auger Drill Bit Aluminum Key Chain Full circle or part circle Item Weight:.625 Full circle or part circle adjustable arc 20° to 360° with infinite pattern adjustments crown x 1 1 4 in Series Name N A Sub Brand N A Bit Type Ship auger bit Bit Length 18 in Shank Size 7 16 in Shank Type Hex Material High speed steel Case Type Hard Quick Change No For Use With Power tool For Use on Metal No For Use on Wood Yes Warranty Lifetime Set Individual Individual Package Quantity 4 CA Residents: Prop 65 Warning(s) No Brand Model Compatibility Southwire Bit Diameter (Inches) 7 8 in Screw tip draws bit through wood Polished and coated flutes increase removal of cutting material