RX Coating Tapered Head Punches

This tapered head punch set is used in precision injection-mold tooling for processes that require stable, clean shearing and consistent punch engagement over long runs. In automotive connector and terminal molds, the tapered head geometry helps guide material contact more predictably, supporting repeatable cut quality while the RX-coated surface resists wear to limit dimensional drift during high-volume production.

For consumer electronics housings and snap-fit features, these punches support accurate forming of small bosses, slots, or insert-like openings. The powdered high-speed steel construction (equivalent to SKH51) provides the wear resistance needed to maintain punch sharpness, reducing scrap caused by burrs or incomplete punching.

• High-volume punching stations where tool wear directly impacts part tolerances
• Shallow-to-medium cavity detailing benefiting from controlled tip contact
• Operations prioritizing reduced downtime through extended service life

The punches use powdered high-speed steel with an equivalence to SKH51. Powder metallurgy improves carbide distribution uniformity compared with conventional melting routes, which supports consistent abrasion resistance at the cutting surface.

In service, RX coating is designed to complement the substrate by improving wear resistance and helping preserve edge condition during repetitive punching. Hardness targets are not explicitly specified in the provided data, so selection should be validated against the supplier’s processing/heat-treatment certificate for the as-delivered condition.

Material trade-off: high-speed steels are typically selected to balance hardness and toughness for tools that experience both cutting action and intermittent load. Compared with softer tool steels, SKH51-equivalent grades generally offer higher wear resistance; compared with ultra-hard specialty grades, they can provide better resistance to brittle chipping under dynamic impacts.

• Steel: Powdered high-speed steel, SKH51 equivalent
• Coating: RX coating for improved surface durability
• Heat-treatment state: Not stated; verify quenched & tempered / finished condition on delivery

To select the correct tapered head punch, match the shank diameter (D) and the tip geometry (P) to the mating holder and the punch opening/cavity/core feature requiring the cut. From the provided specs, D is available at 8, 10, 13, 16, 20, 25 mm, so choose the largest diameter that fits your guide and load-bearing requirements without interfering with surrounding mold components.

The full length (L) is fixed in the range 60 to 100 mm, while LC (full length change) spans 37 to 99.9 mm. The tip dimension change (PC) is available in multiple ranges: 1.5 to 2.99, 3 to 5.99, 5 to 9.99, 6.5 to 12.99, 9 to 17.99—select the PC that corresponds to the required engagement change for your specific setup.

• Use L to ensure adequate protrusion/engagement in the tool stack
• Use P (available: 3–7.99, 3–9.99, 6–12.99, 10–15.99, 13–19.99, 18–24.99) to match the cutting feature size
• Confirm tolerance/fit with your punch holder and guide system; tolerances are not provided in the dataset