N 30 without collar - Matrices with ISO 8977 predrilling

Ordering Example
Compass = 30
HSS material = 3
d1 = Ø 5 mm = 0500.
L = 20 mm = 020
Numero d’ordine = 30.3.0500.020

Material: HSS
N° d’ordine: 30,3
Hardness: 64+-2 HRC