IDEAL Nailbiter 1 in Woodboring Ship Auger Drill Bit Castle Gray Oak rip capacity easily cuts a rip capacity easily cuts a variety of larger shelving and trim materials (Square) 5 Number of pieces per bundle 30 Roofing Product Type Hip and Ridge Shingle Fire Rating (UL 790) Class A Returnable 180 Day Color Finish Cedarwood Abbey Weight Per Bundle (lb even through nail embedded lumber Dual induction heat treated ensures durability staying sharper longer Heavy duty lead screw designed for quick gripping and penetration power Re sharpen for extended tool life 7 16 In hex shank Full black oxide coating prevents rust Quick change shank design Series Name Nailbiter Sub Brand N A Bit Type Ship auger bit Bit Length 7 1 2 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 90 day limited Set Individual Individual Package Quantity 1 CA Residents: Prop 65 Warning(s) No Bit Diameter (Inches) 1 in Brand Model Compatibility N A