A four piece toothed Injector Socket Set for use on Commercial Vehicles. 1/2"D x 72mm x 4 tooth, Hex 32mm x 70mm x 4 tooth (with Spline M14 x 1.5 receiver thread), 1/2"D x 120mm x 3 tooth, Hex 32mm x 120mm x 4 tooth for Mercedes, Neoplan, Setra & MAN. Also suitable for some Iveco, Scania & Renault.