Description:Polishing surface features anti-oxidative, waterproof and anti-corrosion. Fine workmanship ensures its stable performance and long service life.Equipped with chuck key, it can adjust the chuck to proper tightness. It is very convenient to use and carry.Made of premium carbon steel material, this drill chuck is wear resistant and anti-impact.The clamp range is 0.3-4mm.The mini drill chuck can be used for drill machine, electric drill, etc.Item Name: Drill ChuckMaterial:Carbon SteelClamping Range: 0.3-4mmSize Details:Length: 2.15cm/0.85" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 X Wrench1 X Drill Chuck