IDEAL Nailbiter 3 4 in Woodboring Ship Auger Drill Bit White Ice Granite Item Weight 22 Material Aluminum magnetic starters Item Weight 22 Material Aluminum Horsepower (hp) giving the pattern a sophisticated 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 carbon 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 Bit Diameter (Inches) 3 4 in CA Residents: Prop 65 Warning(s) No Brand Model Compatibility N A Nailbiter™ premium dual helix construction Twin cutting edges for fast and smooth drilling