[QUICK CHANGE KEYLESS CHUCK]-Suitable for 1/32inch to 1/8inch shank sizes. Adapter compatible with 4485 4486 models 100 200 275 285 300 395 398 400 750 770 780 800 3000 4000 8200. Except for discontinued 1, 2 and 1 series or 8050-N/18 260, 270 and 280 models. [High Quality Material]Metal material, wear-resistant, more durable and safer than other plastic materials. Used in conjunction with the brass chuck, it has strong adaptability and improves accuracy. [10 sizes of brass 4485 chucks]-0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.4mm, 3mm, 3.2mm. Please confirm the size you actually need before purchasing. [WHAT YOU GET]-You will get drill chuck chuck kit, including 1 alloy replacement keyless chuck, 1 brass replacement chuck nut, 10 brass 4485 chucks. Colour:gold+black Material:Metal Package Contents: 1 x alloy replacement keyless collet 1 x brass replacement collet nut 10 x brass 4485 collets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.