3 Piece Proto 1/2 IN Drive Locking Impact Extension Set
This locking impact extension set is ideal for accessing fasteners in hard to reach areas. A solid one-piece design helps prevent the locking components from becoming loose or disengaged. The patented locking feature locks sockets to the extension with exceptional force. The shank is knurled providing a slip-resistant grip when hand turning the extension. Meets ASME B107.110-2012.
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