XL X-Beam (TM) Flex Combination Ratcheting Wrench, 17 mm Surface drive on box end provides off-corner loading for better grip and reduced fastener rounding. X-beam™ design has over 500% more surface area, enabling more force and less hand fatigue. One piece forged beam design - no metal twisting or weak spots. Up to 25% longer to access hard-to-reach fasteners. Patented, award winning design. Flexible head with Hex head set screw, not pinned. Overall Length 10.830 in. SAE/Metric/Torx Metric. Fastener Size 17 mm. Drive Type 12 Point. End B Offset Degrees 0 °. End A Drive Type Open End. End A Ratcheting Type None. End B Width 1.270 in. End B Thickness 0.420 in. End A Offset Degrees 15 °. End B Joint Type Flex. End A Width 1.490 in. End A Thickness 0.360 in. End A Joint Type None. End A SAE/MET Metric. End B Ratcheting Type Standard. End B SAE/MET Metric 85267