IRWIN 1 2 in Woodboring Drill Bit Zinc Plated Bolts A: It features a sturdy This vanity brings a A: It features a sturdy solid wood frame with dovetail drawer construction and soft close hardware It's powered by2 18 Volt Lithium Ion batteries for 36 Volt power and performance Series Name N A Sub Brand N A Bit Type Auger bit Bit Length 12 in Shank Size 1 4 in Shank Type Hex Material High speed steel Case Type N A (no case) Quick Change No For Use With Power tool For Use on Metal No For Use on Wood Yes Warranty None Set Individual Individual Package Quantity 1 CA Residents: Prop 65 Warning(s) Yes Brand Model Compatibility All Bit Diameter (Inches) 1 2 in allow for easy through hole drilling up to 9 in deep 1 7 16 In counter bore to set washer