Pryor Reverse Punches are manufactured from quality
controlled Chromium Tool Steel allied to precise
heat treatment, giving a hardness of 58-62 Rockwell
'C' at the character and 32-40 Rockwell 'C' at
the striking end.
Suitable for marking material up to 38 Rockwell
For guidance on hardness of material to be marked
Nickel plated for rust protection