Pryor’s Heavy Duty Punch Sets are a range of high performance, low cost, precision hand stamps, with a larger blank giving greater strength and allowing a heavier blow to be struck.
The larger blank size is unrivalled by many around the globe and is the most cost effective stamp for prolonged or industrial use on anything from Aluminium to Stainless Steel up to a maximum hardness of 38 Rockwell C.
All the stamps in this range are hardened and tempered to precise limits, nickel plated for rust protection thus giving maximum safety in use and long product life.
Heavy Duty Punch Size Chart
To be used in connection with the Punch Diagram in the images ribbon.
Character Height – measured from the crest of the engraving as shown.
| Character Height | Stamp Length (A) | Square Section (B) | Square Section (C) | ||||
| Metric | Imperial | Metric | Imperial | Metric | Imperial | Metric | Imperial |
| 1.0mm | .040″ | 63.50mm | 2.1/2″ | 6.35mm | 1/4″ | 6.35mm | 1/4″ |
| 1.5mm | 1/16″ | 63.50mm | 2.1/2″ | 6.35mm | 1/4″ | 6.35mm | 1/4″ |
| 2.0mm | 5/64″ | 63.50mm | 2.1/2″ | 6.35mm | 1/4″ | 6.35mm | 1/4″ |
| 2.5mm | 3/32″ | 63.50mm | 2.1/2″ | 6.35mm | 1/4″ | 6.35mm | 1/4″ |
| 3.0mm | 1/8″ | 63.50mm | 2.1/2″ | 6.35mm | 1/4″ | 6.35mm | 1/4″ |
| 4.0mm | 5/32″ | 70.0mm | 2.3/4″ | 9.50mm | 3/8″ | 9.50mm | 3/8″ |
| 5.0mm | 3/16″ | 70.0mm | 2.3/4″ | 9.50mm | 3/8″ | 9.50mm | 3/8″ |
| 6.0mm | 1/4″ | 70.0mm | 2.3/4″ | 9.50mm | 3/8″ | 9.50mm | 3/8″ |
| 8.0mm | 5/16″ | 89.0mm | 3.1/2″ | 12.70mm | 1/2″ | 12.70mm | 1/2″ |
| 10.0mm | 3/8″ | 89.0mm | 3.1/2″ | 14.30mm | 9/16″ | 14.30mm | 9/16″ |
| 12.5mm | 1/2″ | 89.0mm | 3.1/2″ | 19.0mm | 3/4″ | 19.0mm | 3/4″ |
