Check the listing for details. Armstrong 1/4" Dr 13mm Impact Socket USA 45-013 2PCS. Condition: New. Listed at 3.50 USD. 1/4" Drive 6 Point Impact Socket 13mmMADE IN THE USA - QUALITY AND AVAILABILITYRADIUS CORNER DESIGN ENGAGES THE FLATS OF THE FASTENER, NOT THE CORNERS, PROVIDING UP TO 15%-20% MORE TORQUE WHILE REDUCING FASTENER ROUNDING, ENHANCING THE TURNING OF WORN FASTENERSEYE-D™ MARKINGS OPTIMIZE SIZE VISIBILITY, ALSO PROVIDING SAE / METRIC DIFFERENTIATIONSOCKET WALL DIMENSIONS ARE OPTIMIZED TO PROVIDE STRENGTH WHILE RETAINING ACCESS TO RESTRICTED FASTENERSMANUFACTURED FROM HIGH ALLOY STEEL USING THE MOST UP-TO-DATE MANUFACTURING PROCESS AND HEAT TREAT FOR GREATER STRENGTH AND DURABILITYMEETS OR EXCEEDS ASME B107.33M-2002 Made in USAYesForeign Trade Code8204200000Fastener Size13 mmUPC781412450132SetNoASME SpecificationB107.33M-2002SAE/Metric/TorxMetricDrive Type6 PointDrive Tang Size1/4 inLength FormatStandardDim. A: Drive End0.681 inDim. C: Overall Length0.874 inDim. D: Bolt Clearance0.472 inDim. E: Wrench Depth0.500 inDim. B: Wrench End0.681 in