Cut-Out Bit, Drill Bit Diameter 1/8 in, Max. Speed 33,000 RPM, Shank Diameter 1/8 in, Overall Length 3 in, Bit Application Drywall, Primary Material Application Drywall, Material High Speed Steel, Cutting Direction Right Hand, Cutting Depth 1 in, Tool Brand Rotozip, Package Quantity 8 ROTOZIP high speed cutter is high speed steel (HSS) material for long life and ideal for controlled cuts in drywall.