21MM15 Apex 21Mm Metric Standard Socket, 1/2” Square Drive. Hex Opening: 21Mm Overall Length: 38.1Mm Diameter Nose End: 31.7Mm Diameter Drive End: 31.7Mm Opening Depth: 13.5Mm
21MM15 Apex 21mm Metric Standard Socket, 1/2” Square Drive have hex tolerances that are on average 48% tighter than DIN and 35% tighter than ANSI requirements. With Apex you are assured of an exact, sure fit. High strength fasteners in demanding situations, like those found in the automotive and aviation industries, often require the use of an impact wrench or impact driver to deliver the amount of torque required to tighten or loosen them.
21MM15 Apex 21mm Metric Standard Socket, 1/2” Square Drive are specifically designed and manufactured for high impact use, and made from a tougher and more ductile alloy steel which is then heat treated for extra durability.
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