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: 1/4-Inch Drive Standard Length Metric Socket Set, Product Name: 1/4DR Standard Length Metric Socket Set, Finish: Full Polish Chrome, Weight: 0.09, Length Format: Standard, Drive Tang Size: 1/4, Drive Type: 6 Point, SAE/Metric: Metric, Set Included Storage: Metal Socket Rail, Set Piece Count: 10, ASME Specification: B107.5m-2002, US Federal Specification: , Laser EYE-D: No.