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2 days
The Proto 3/8-inch square drive extension features a 7/16-inch hex body and measures 2-3/4 inches in overall length. Constructed from forged steel for durability, it includes a ball detent for secure socket retention and has the size stamped directly on the tool for quick identification.
Ideal for a wide range of fastening tasks, this extension provides reliable torque transfer without slipping or rounding off fasteners. Manufactured in an ISO 9001-certified facility to Proto/Stanley quality standards. Not intended for use with impact applications.
2 days
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