Precisely-sized, chamfered ends insert smoothly into fastener head, reducing wear. 30 x Hex Key Wrenches. Long arm wrenches provide extra reach and greater torque. ●15 Long Arm SAE Keys (3/8", 5/16", 1/4", 7/32", 3/16", 5/ 32", 9/64", 1/8", 7/64", 3/32", 5/64", 1/16", 0.05", 0.035", 0.028").
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