On this 2004 LBZ Duramax motor, the fuel injector line was in the way, so we used our GripEdge RPT Dual Action Driver (DAD), which is only 22mm in length. In another scenario, the Hex fastener was in a hard-to-reach area, so we used our GripEdge RPT Ball Hex, which provides up to 50% more Grip on brand-new Hex Fasteners. #lbzduramax #dieselmechanic #automotiverepair #enginerepair #gripedge | GripEdge Tools