Precision Piercing Punches with countersunk head and point to DIN 9861 Part 2, Type C

Specification: Hardened, tempered, ground, lapped all over. Head hot forged and annealed.

Shaft tolerance h6 up to head.

(no enlargement)

 

Materials: D2 = Tool Steel

HSS = High Speed Steel

ASP 23 = Powered Steel

 

Hardness: Shaft: Tool Steel D2

HSS and ASP 23

Head: Tool Steel D2,

HSS and ASP 23

62±2 HRC

64±2 HRC

50±5 HRC

50±5 HRC

 

d1 h6
in steps of
L1
d2
d3
L2
h
r
more than to +0.5 h6 +0.5 +0.2
0 0
0.5 1.4 0.1 71 80 2.2 ±0.05 7 1.11 0.4 +0.3

0

0.5 1.9 3.0 ±0.1 1.37
1.6 2.9 4.5 1.80 0.6 +0.4

0

2.5 3.5 0.5 5.5 10
3.5 4.5 6.5 ±0.2
4.5 5.5 8.0 2.23 1.0 +0.5

0

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