05003386001 Zyklop 1/4" Hex socket bit w/ holding function US sizes

For 3/16-inch Allen head screws, this Wera Zyklop 1/4-inch drive socket bit provides a superior level of grip and security. Using the 8740 A HF profile, it features a holding function that keeps the bolt locked onto the tool during installation or removal. The Hex-Plus geometry is designed to extend the life of your fasteners by providing more surface contact and reducing stress at the corners of the bolt head. This 28mm bit is crafted from chrome vanadium with a brushed finish and features a ball intercept ring for a positive connection to your ratchet. The knurled base is perfect for starting bolts by hand. Please remember that this bit is not suitable for use with impact wrenches.