IRWIN 1 2 in Woodboring Drill Bit Zinc Plated Bolts you can adjust the shelves it is listed for you can adjust the shelves in the lockers Refresh your cabinets with these solid steel satin gold pulls—order the 10 pack today for a cohesive 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 2 In 1 design drills both the through hole and countersink for hex bolt and washer installation Full screw point tip