Features: * 1/4 inch hex shank fits many tools, so makes them very useful. * Standard 1/4 inch shank. * Can be used on standard regular drill chucks or electric drills. * Bell shape and magnetic insert hexagon allows you to hold the drill securely in place for faster installation.* Made of heat treated chrome vanadium steel, very high hardness, good abrasion resistance* Durable and long service life Specification: Name: Impact Socket Color: as picture show Length: 65mm (approx.) Size: 6mm.8mm.10mm.12mm.14mm.17mm Quantity: 6pcs Package includes: 6pcs impact socket Note: 1. The real color 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.