Non-Ratcheting Combination Wrench, 18mm Surface drive on box end provides off-corner loading for better grip and reduced fastener rounding. Bright, full polish chrome finish. Made of premium alloy steel. Surface drive plus™ on open end: stronger grip, reduces fastener rounding, up to 25% more torque. Large size stamp on open end. Offset box end for better access. Overall Length 10.602 in. SAE/Metric/Torx Metric. Fastener Size 18 mm. Drive Type 12 Point. End B Offset Degrees 15 °. End A Drive Type Open End. End A Ratcheting Type None. End B Width 1.047 in. End B Thickness 0.453 in. End A Offset Degrees 15 °. End B Joint Type None. End A Width 1.461 in. End A Thickness 0.339 in. End A Joint Type None. End A SAE/MET Metric. End B Ratcheting Type None. End B SAE/MET Metric 81675 No -