Feature: The spring ball bearing on the head can fix the seat firmly. Suitable for quick replacement 1/4" chuck system or direct insertion drill chuck drill bit. Change from a manual socket set to a motorised socket set. Very suitable for impact wrench or drill bits. Allows you to replace the ratchet with a power tool. These impact adapters are designed for the most demanding applications. Applicable to: working in the narrow environment of the factory and family, rack installation, dismantling of chairs, factory maintenance, car maintenance, woodworking. Specification:Material: Chrome Vanadium Stainless Steel Size:Short: 50*30*22mm/1.97*1.18*0.87"Long: 136*30*22mm/5.35*1.18*0.87"Note:Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Please allow 1-3cm measurement deviation due to manual measurement. 1 X Screwdriver Bit Holder[Relateproductdetail/]