8PC SAE X-LG Master Locking Flex Head Ratcheting Combo Wr Set

5/16" to 3/4"Extra long design - Sets a new industry mark for leverage and strength. 15% longer than the standard Flex Head .
» Flex heads positively lock into 11 positions.
» One finger operated lever with "locked" and "unlocked" positions.
» Patented GearForce technology in the ratcheting box end requires only a 5° swing arc to turn fasteners.
» Patented Surface Drive Plus open end to minimize fastener round off and spread.The patented ratcheting box end needs as little as 5-degrees of sweep to move a fastener. A standard 12-point box end wrench needs 30-degrees or 6 times as much room.
Extremely strong, meets or exceeds ANSI, DIN and federal torque specifications for standard professional combination wrenches.