IRWIN Marples 2 1 8 in Woodboring Forstner Drill Bit Air Compressors Grade 2 Steel Construction: Strong Kitchen Carts Grade 2 Steel Construction: Strong A must have for elevating practical projects with enduring IRWIN Marples Forstner bits drill clean and precise flat bottomed holes and pocket holes quickly and easily Teeth designed for clean holes Cutting angles maximize speed of cut Reduced shank fits 3 8 in and larger drills and drill presses Series Name N A Sub Brand Marples Bit Type Forstner bit Bit Length 3 11 16 in Shank Size 3 8 in Shank Type Round 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) 2 1 8 in