Cutting Bit, Primary Material Application Aluminum, Drywall, Fiberglass, Laminate, Plastic, Vinyl Siding, Wood, Drill Bit Size 1/8 in, Shank Diameter 1/8 in, Flute Length 1 1/2 in, Material High Speed Steel, Max. Speed 35,000 RPM, Overall Length 1 1/2 in, Rotary Tool Accessory Type Cutting Bit