QuadBox™ Ratcheting Wrench; 5/16", 3/8", 7/16", 1/2" Save weight: 4 sizes in one wrench!. Surface drive on box end provides off-corner loading for better grip and reduced fastener rounding. Quadbox™ design has 2 fastener sizes in each box end. Reversing levers on both sides for fast, easy access. Overall Length 6.300 in. SAE/Metric/Torx SAE. Drive Type 12 Point. End B Offset Degrees 0 °. End A Drive Type 12 Point. End A Ratcheting Type Reversing. End B Width 0.980 in. End B Thickness 0.590 in. End A Offset Degrees 0 °. End B Joint Type None. End A Width 0.780 in. End A Thickness 0.470 in. End A Joint Type None. End A SAE/MET SAE. End B Ratcheting Type Reversing. End B SAE/MET SAE. End A Fastener Size 5/16 in,3/8 in. End B Fastener Size 7/16 in,1/2 in 85201 No -