Material:
HSS
Order No 222.3.
Hardness:
Shaft 64 ± 2 HRC
Head 52 ± 3 HRC

HST
Order No 222.4.
Hardness:
Surface ≥ 950 HV 0,3
Head 52 ± 3 HRC

HZ - TIN (HSS)
Order No 222.0.
Hardness:
Surface 2300 HV 0,05
Head 52 ± 3 HRC

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

Execution:
Shaft precision ground. Head hot upset-forged and tempered. Residual upset bulge below head normally much smaller than permissible acc. to DIN 9861.

d₄: For d₁ < 1 mm, d₄=d₁ + 0,02
For d₁ ≥ 1 mm, d₄=d₁ + 0,03

Stock lenghts: 71, 80, 100 mm.
other lengths and diameters on request!

Note:
Punches are also available without head