IDEAL Nailbiter 3 4 in Woodboring Ship Auger Drill Bit Electric Towel Rack Comfortable Build: 8‑mm total thickness Item Weight:11.69 Comfortable Build: 8‑mm total thickness with natural cork backing for a quieter Elevate your space with easy 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 sharp enable for extended tool life 7 16 In hex shank length 18 in Quick change shank design Full black oxide coating prevents rust Series Name N A Sub Brand Nailbiter 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 Yes For Use With Power tool For Use on Metal No For Use on Wood Yes Warranty 1 year limited Set Individual Individual Package Quantity 1 CA Residents: Prop 65 Warning(s) No Bit Diameter (Inches) 3 4 in Brand Model Compatibility N A