。Hardness: Front End Font HRC 58~62 Degrees. 。Material: Cr-V(6150) 。Meet the requirements of German Standard DIN1451 。9 pcs/set Include 0~8 (the 6 is used as 9) 。Each set packed in a blue plastic case. 。For hand-held, hammer-struck and/or machine applications. 。Stamp is the sandblasting treatment.