Manufactured for high performance, the V-Series™ 3/8 in. Drive SAE X-Tract Technology Hex Bit Socket Set is the model choice for fastener gripping applications. These hex bit sockets are geometrically designed to extract fasteners that are up to 50% rounded without inflicting damage to the fastener with built-in X-Tract Technology. They are perfect for everyday use and, in addition to extraction, their geometry helps prevent future rounding while tightening and loosening fasteners.