FIBRO Punch DIN 9861 Shape D ISO 6752

FIBRO Punch DIN 9861 Shape D ISO 6752

Material: HSS  Order No 223.3.

Hardness: Shaft 64 ± 2 HRC Head 52 ± 3 HRC

HST Order No 223.4.

Hardness: Surface ≥ 950 HV 0,3 Head 52 ± 3 HRC

HZ - TIN (HSS) Order No 223.0.

Hardness: Surface 2300 HV 0,05 Head 52 ± 3 HRC

ASP 23 - ASP 2023 Order No 223.6.

Hardness: Shaft 64 ± 2 HRC Head 52 ± 3 HRC

Description of FIBRO materials for tool and die components see at the beginning of Chapter E.

Execution: Head hot upset-forged and tempered. Shaft and head subsequently precision plunge-ground for perfect concentricity and full interchangea-bility with replacement punches.