Manufactured for extreme performance, the V-Series 3/8 in. Drive X-Tract Technology Hex Bit Socket Set is innovated to tackle a range of fastener gripping applications. X-Tract Technology is a bit geometry designed to extract fasteners that are up to 50% rounded without inflicting damage to the fastener. In addition to extraction, this geometry helps prevent future rounding while tightening and loosening fasteners. Durable enough for everyday use, this effective extraction solution is a must-have in your CRAFTSMAN toolkit.