2753 Bottle Neck Punch Blank, type D-HSS
These bottle-neck punches are a long lasting, hardwearing punch blank. In contrast to type DA these have a fine ground finished shaft (d1) with h6 tolerance up to the head.
Hardened, tempered steel, fully fine ground finish, ground and lapped all over. Head hot forged and annealed.
Material HSS (High speed steel) Shaft: 64HRC+/-2, Head: 50HRC +/-5
Other materials and sizes available on request