aiyun Drill Bit Adapter with 1/4 Hex Shank - 3Pcs Small Drill Chuck

[Clamping Range] Black 0.6 - 8mm*1 0.3 - 3.6mm*1 , Silver 0.3 - 3.6mm*1 The hex drill chuck is small size and light weight, which will not bring extra burden to your operation [Quick Change] 1/4 inch hex shank fits into power tools more easily and securely Easily convert your cordless power screwdriver into a drill to quickly switch between different tasks reducing the amount of time needed for a project [Material] Carbon steel [Clamping] The drill bit is clamped with the tip claw, so there is no need to worry about it falling off