Armstrong Industrial Hand Tools have a heritage of Made in the USA since four brothers founded the company in 1890. Armstrong brand sockets feature precise geometry for an exacting fit and are designed to withstand the toughest conditions from our factory floors to the U.S. Military. All sockets have a lifetime warranty to back up our commitment to industrial grade tools. Product Name : 3/4-Inch Drive 6 Point Deep Length SAE Impact Sockets; Finish : Black Oxide; Drive Tang Size (Inch ) : 3/4;Fastener Size : 1-7/8;Drive Type : 6 Point; Dimension A: Drive End (Inch ) : 1.875;Dimension B: Wrench End (Inch ) : 2.625;Dimension C: Overall Length (Inch ) : 3.625;Dimension D: Bolt Clearance (Inch ) : 1.560;Dimension E: Wrench Depth (Inch ) : 1.438;Dimension F: Length to Shoulder (Inch ) : 2.825;ASME Specification : B107.2-2002;US Federal Specification : GGG-W-660a;Length Format : Deep; SAE/Metric : SAE.