IDEAL Nailbiter 7 8 in Woodboring Ship Auger Drill Bit Surface Prep Tools The blades are made with The blades are made with forged steel and can be sharpened for longer life the HTC pedestal rollers are just the ticket Heavy duty design includes the exclusive wedge lock™ inner leg Series Name Nailbiter 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 Yes For Use With Power tool Hand brace 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 Brand Model Compatibility N A Bit Diameter (Inches) 7 8 in plastics and heavy timber Full black oxide coating prevents rust