Contains8,10,12,18,25Chisel made of high quality CrMo Steel. The blade is sharpened in 24gr, and ready for use, hardened up to 59-61 HrC makes the blade stay sharp for a long time. 3 component handle, impact resistant fiber plastic impact surface, and ergonomic handle with comfortable TPR grip that transfers 95% of the power from the impact to the blade.