• Universal spline design offers a tighter fit on proper size fasteners for better tightening
• Also works on SAE/MET sizes, 6pt, 12pt, external star, square
• Black phosphate finish with polished edges make sizes easy to read
• Chrome vanadium alloy steel construction for strength and durability
• Convenient storage rack
• Sizes: 6 (1/4), 8 (5/16), 9 (11/32), 10 (3/8), 11 (7/16), 13 (1/2), 14 (9/16), 16 (5/8), 17 (11/16), 19mm (3/4)
• Note: due to varying tolerances, check fastener to ensure proper fit before use
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