1/2" Drive bars: 75mm (3"), 150mm (6"), 250mm (10"). 9pc 1/4" 3/8" 1/2" Impact Extension Bar Set For Sockets Drive. Supplied in moulded tray ideal to keep them organised in a tool chest or drawer. 1/4" Drive bars: 50mm (2"), 100mm (4"), 150mm (6").
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