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H & J Associates

Precision Punches

Precision Punches

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We are highly acclaimed for our superior quality product range which includes precision punches and piercing punches etc. These bonafide precision punches and piercing punches are exceedingly durable and result oriented. Our all products are as per the Indian standards and parameters. We have accepted the contemporary challenges of this competitive market and proved ourselves as the best exporter, wholesaler and suppliers. The high demands of precision punches have placed us on the top over the chart. We are glad to say that we are the one and only precision piercing punches exporter based in India.

We offer a wide variety of precision piercing punches that include :
Our Precision Piercing Punches (Manufactured as per standards specified by IS:4296-1967) These precision punches are manufactured from 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 µm.
  • 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.

Precision Piercing Punches
  • Length : Other Lengths are 35,40,50,60,70,80 & 90 mm
  • d1 : The values of diameter d1 are recommended in steps of 0.05 mm upto 0.95 mm dia and in steps of 0.1mm from 1.0 to 6.4mm dia and in steps of 0.5mm from 6.5 to 16 mm diameter.
  • Finish : Hardened, Tempered & Precision plunge ground and Lapped
  • Surface Finish : 0.3-0.4 µm
  • Hardness: Shank WPS 62+-20 Rockwell C , HSS 64+-20 Rockwell C, Head 45 +- 50Rockwell C
  • Designation: Round piercing punches should be designed by the type, material, the normal size, the length and standard

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