Features: It can be used for pneumatic tools, electric tools, and manual tools with a hexagonal chuck, and with a drill, grinding, and screwdriver bit for clamping, to realize multiple functions of one tool. Three-jaw collet, strong, stable, and fast clamping force. Quickly convert your quick-change hexagonal shank drive into a drill. It can be used in the fields of craft manufacturing, DIY creation, and production manufacturing. Aluminum alloy + carbon steel material, high hardness, wear-resistant. Specification: Material: Aluminum alloy, carbon steel Type: H01334, H01335, H01455, H01554 (Optional) Size: as the picture shows Weight: Approx.20g~45g/0.7oz~1.6oz Model (Optional) Hex shank Clamping range Material H01334 6.35mm 0.3-3.6mm Nickel - aluminum alloy + carbon steel H01335 6.35mm 0.3-3.6mm Black aluminum alloy + carbon steel H01455 6.35mm 0.3-6.5mm Black aluminum alloy + carbon steel H01554 6.35mm 0.3-6.5mm Nickel - aluminum alloy + carbon steel Package list: 1 x Hex Shank Drill Chuck 1. It can be used for pneumatic tools, electric tools, and manual tools with a hexagonal chuck, and with a drill, grinding, and screwdriver bit for clamping, to realize multiple functions of one tool. 2. Three-jaw collet, strong, stable, and fast clamping force. 3. Quickly convert your quick-change hexagonal shank drive into a drill. 4. It can be used in the fields of craft manufacturing, DIY creation, and production manufacturing. 5. Aluminum alloy + carbon steel material, high hardness, wear-resistant.