Specification: - Material: Metal - Types: 65-40 reduction sleeve, 65-53 reduction sleeve, 65-55 reduction sleeve, 65-58 reduction sleeve, 65-60 reduction sleeve (optional) - Product length: 180mm / 7.1in - Size: 190 * 100 * 95mm / 7.5 * 3.9 * 3.7in - Weight: 1230g Features: 1. Made of high-quality steel, strong and durable, capable of firmly holding wood. 2. Strong power, designed specifically for drilling equipment. The drill bit is designed to prevent blockage by sawdust. 3. Applicable machine tool: drilling machine (Note: the vertical distance between bench drill chuck and worktable must be at least 300MM for installation). 4. Time-saving: these woodworking inlay chisels reduce labor intensity, speed up construction, and lower construction costs in construction, installation, decoration, and decoration industries. 5. The multifunctional tenon and tenon machine can cut round, square, special square wooden mortises, and can also be used for round grooves, internal grinding, metal drilling, etc. Package Included: - 1 x Bench drill locator - 1 x Reducing sleeve (Size of your choice