1/2'' Drive x M10 Triple Square Driver 4'' Length Grey Pneumatic sockets are designed for professional tool users.. Made of high quality alloy steel.. Engineered specifically for use with impact tools.. Benefits of the GP Impact Socket “High Torque” drive: Increased strength, easier access to tight areas, and reduced wear.. Impact Driver. 1/2” Drive. M10 Triple Square Driver 4'' Length. Drive End 0.98”. Socket End 0.36”. Bolt Clearance Depth 2.96”. Hex Depth 0.52”. Length 3.94”. Lifetime Warranty 21104S