precise and safe center punching of workpieces, in industry, workshop or at home, accurate placement of the drill, safely centered holes, precisely ground tip, high hardness, extremely durable, rehardened impact head, prevents splintering according to standard specifications, made of octagonal steel, for safe handling, special alloy based on spring steel, exceptional elasticity with high hardness, laser marked with serial number, lifetime warranty, when working with impact tools observe safety regulations: www.pbst.chsafe