Chrome vanadium steel bars which allow high torque and reduce the risk of tip breakage. Handles are moulded directly to the shaft for a virtually unbreakable bond. Colour coded for easy identification of the right tip type for the application. Set includes, 4 x Parallel: 2.5 x 50mm, 3.5 x 75mm, 4 x 100mm, 5.5 x 125mm 1 x Slotted: 6.5 x 150mm & 2 x Phillips: PH1 x 100mm, PH2 x 125mm.