The Proto 1/2-inch Drive Impact Extension provides 2 inches of additional reach, making it easy to access fasteners in tight or hard-to-reach locations. The male square is oriented in-line with the female square for compatibility with fixed-head torque wrenches, and a full chamfer at the drive opening ensures smooth, easy engagement with drive tools.
Four detents and a drive end chamfer deliver quick, positive engagement on any socket drive wall, while a side locking hole adds secure retention during use. The size is stamped directly on the tool for fast, at-a-glance identification on the job.