Product Profile of Precision Piercing Punches
The precision punches are manufactured by H & J Associates are suitably selected high speed steel [HSS] and special alloy steel [WPS]. Punches are heat treated and triple tempered under strict quality control. The punches are precision ground to close tolerances and surface finish is maintained between 0.3 to 0.4 ?m.
Head hardness of punch - 45 Rc ? 5
Shank hardness - 60?2 Rc [for WPS material]
Shank hardness - 62?2 Rc [for H.S.S. Material]
Standard sizes are regularly manufactured, though special sizes step punches, step ejector pins and shapes can also be manufactured as per customer`s requirements.
