We are in this line for more than 10 years
We supply press brake tooling and shear blades(knives) for sheet metal Fabrication Manfacturers.
Material :42CrMo=42CrMo4=SCM440=4140
Holistic heat treatment :quenching + tempering  +   860 °C Oil
                         quenching  + 390°C  Tempering .
General Hardness: 47+/-2 HRC

It is economical die for low cost forming of light gauge sheet metal, especially for short flange work.
General Purpose dies are easily modified in many ways to meet special forming and bending requirements- larger or smaller radius, special angles, clearances, etc.When forming 10 ga. metals and heavier, we recommend using our number 17, 19, 21, and 23 with their respective dies. However, air forming is most common here, in order to keep press brake tonnage reqirements to a minimum and to prevent material fracture.