• 180° Flex head has 13 locking positions • Locking switch • 72 teeth needs as little as 5° to move fastener while a regular whech need 30° of sweep space. • 15° Offset tradional box end helps reduce swing obstacles and to minimize knuckle fatiguee. • Chrome vanadium steel (CRV) for high durability • Professional plating prevents wrenches from corrosion • Superior life-time test