Features: for Durability Suitable Accessories: Silver is 2.7" long, 0.3 - 6.5mm, Black is 1.97" long, 0.3 - 3.6mm, Easy to use, easy to install, safe, fast, 1/4" hex wrench is a convenient electric screwdriverFeatures: This keyless drill chuck easily turns your cordless electric screwdriver into a drill or grinder; You have to turn the tail to adjust, quickly switch tasks and continue working on the track; These are the necessary accessories for power toolsEasy to lock and release drill bits for quick changeovers: change the hex chuck drivers for the drill bit; Hex drive power tools allow you to use with a drill bitWide range of applications: These drill chucks are available in a variety of sizes to fit most electric drills and cordless electric screwdrivers; They can be used in cars, garages, warehouses, offices, homes, and more. Easy Loading and Unloading: This wrenchless drill chuck can go from driving to drilling in seconds, and it also gives you the freedom to drill with one hand, perfect for working in tight spaces. Product Parameters:Type: 2 pcs Keyless Drill ChuckMaterial: MetalColor: Black, SilverSilver Clamping Range: 0.3 - 6.5mmBlack Clamping Range: 0.3 - 3.6mmShank: 1/4"Fits Most Drills and Cordless Electric ScrewdriversIdeal for Working in Tight SpacesApplications Cars, Garages, Warehouses, Offices, Homes, etc. Package List:2*Keyless Drill ChuckNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.