1/4 Drive 80pc Impact Socket MASTER SET, our Most Complete Set Ever with SAE & Metric from 3/16 Inch – 9/16 Inch, 4mm – 15mm, Standard/Deep/Universal & Torx & Inverted Torx Sockets & More. Impact Sockets: Crafted with aerospace grade CRV and CRMO steel for power and flexibility in demanding high torque impact tools. Master Set: Our Largest 1/4 Drive Socket Set Ever! 80pc of every tool we have ever needed in a socket set. Too many to list here, see Product Description below for a list! Designed for Tight Spaces: Our sockets are the perfect balance of thickness and high tensile strength CRV and CRMO steel. Combine this with our included U-Joint and extensions, and you can get just about anywhere. Radius Corner Design: Sockets designed to apply more force and reduce rounding of bolts by grabbing fasteners by their sides, not tips. Faster fastener gripping: Sockets design with a chamfered opening to align faster and make fastener gripping smooth as possible. Break a single socket? Don’t send back your whole set and wait on a replacement for weeks. We pride ourself on quick and efficient replacements by sending out just the socket(s) that broke.