Quick change keyless chucks holds various accessories with 1/32inch to 1/8inch sizes. Pay attention to measure the size buying. 3- chuck compatible for all cordless and corded tools(including drill , sanding drums, polishing wheels and other light-duty accessories) One-piece structure design, alloy material, sturdy and durable, more than plastic models. The 3- chuck is -made, and the built-in spring is stable and durable. This keyless chuck provides a big improvement in precision and holds these more securely and in better alignment with the rotation of the tool, under high-speed rotation, it not only maintains stability also improves work efficiency. There are eight sizes of brass 4485 collet for you to : 0.8mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.4mm, 3.0mm, 3.2mm. Please confirm the size you actually need buying. Colour:As shown Material:brass Package Contents: 1 set x keyless chuck Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.