Metric Close Space Straight Punches (CRN Coating)

These metric close-space straight punches are used in injection-mold-related tooling for die and insert operations that require clean, repeatable punching in tight packaging. Their straight profile supports stable guidance, helping maintain hole-to-edge consistency even during high-cycle production.

Common scenarios include:

• Automotive connector and harness insert tooling where compact progressive dies must form features without interference from neighboring stations.
• Electronics and bracket housings in fine blanking/progressive workflows, where accurate punching close to die walls reduces scrap and secondary finishing.
• Industrial precision blanking on layered components, benefiting from the close-space geometry to maintain alignment across repeated strokes.

The CRN coating variant is suited for applications with repeated contact and sliding at the punch surface, supporting improved surface performance compared with uncoated punches. Choose the angled head (AWX) or regular head (AXX) to match assembly handling and retention constraints in your tool build.

The provided product specifications focus on geometry and coating, so the exact steel grade and heat-treatment state (e.g., pre-hardened vs. quenched & tempered, nitrided) are not listed in the available data. For this reason, material property claims such as specific HRC hardness or direct wear/toughness trade-offs by alloy are not stated here.

What can be supported from the supplied information is that the punch is offered with a CRN coating. In die-punching contexts, CRN-coated tools are typically selected to improve surface performance under repeated use, helping reduce surface-related wear and maintaining dimensional stability longer than uncoated variants.

Coating comparison: If you compare this to an uncoated close-space punch from the same form factor, you would generally expect better surface durability from the CRN-coated variant, while base-material toughness remains governed by the underlying steel heat treatment (not provided in the spec set).

Select the punch based on cavity/core access constraints first, then confirm length and critical cross-section dimensions.

• Type/Head style: Choose angled head (AWX) for assembly-friendly handling, or regular head (AXX) for standard punch retention.
• Length (L): The available range is 40 to 100 mm. Ensure L provides sufficient protrusion and guidance engagement for the press stroke while avoiding interference with die blocks.
• P dimension: Use the 0.8 to 7 mm range to match the required punch working geometry and the die feature area your operation forms.

To match mold cavity/core requirements, compare your die insert clearances and target feature location relative to neighboring stations. Account for manufacturing tolerances in the die set: maintain appropriate clearance around the punch body to prevent side loading and ensure consistent blanking/punching depth across the life of the tool.

If your build uses interchangeable tool components, keep the same head type and confirm that L and P correspond to your tooling drawings and retention design.