1. Single use: less compatibility, multiple conversions; dual use: hexagonal interface, wide versatility 3. Single use type: blue belt sleeve, conversion head, pneumatic sleeve 4. Dual-purpose use type: bit, woodworking hole saw, blue belt socket, conversion head, pneumatic socket 5. Precision forging, high concentricity, durable, high hardness and wear resistance 6. One-piece forging of chrome vanadium alloy steel, anti-wear and anti-corrosion 7. Built-in strong magnet, stable adsorption of the bit head, prevent falling, easy to work 8. Connect the electric wrench adapter according to the hole depth 9. The card slot with a diameter of 10mm at the tail and a depth of 5mm is used for electric inlay 10. Material: chrome vanadium alloy steel 11. Dimensions: 48x37x5mm 12. Weight: single use: about 84g; double use: about 78g
