Inch Standard XNP Coated Regular Punches

These inch-standard regular punches are used in progressive and single-station punching dies where repeatable cutting engagement and stable forming are required. The XNP coating is particularly suited for high-cycle stamping because it helps resist abrasion and reduces performance loss from tool-to-work contact.

• Automotive metal stamping: employ with H, J, K, L, N, O, R, V, X, or Z tip shapes to tune cutting geometry for housings and bracket features; the regular punch geometry supports consistent alignment in typical die layouts.
• Appliance and enclosure fabrication: suitable for producing holes and slots in sheet materials where the punch experiences frequent re-sharpening cycles; XNP coating supports longer run times under production load.
• Industrial connector and terminal punching: use alternate point-length ranges to match cavity depth requirements and maintain controlled bite, improving dimensional stability during repetitive operations.

For all cases, the inch sizing range and coded point length options make it easier to select a punch that fits established tooling stacks while benefiting from improved wear resistance.

Material and heat-treatment specifics are not provided in the available product data for this series. What can be stated from the specification is the functional surface condition: XNP coating, which is used to improve wear resistance and reduce degradation during repetitive punching.

• XNP coating (functional emphasis): enhances resistance to abrasion at the punch tip and improves tool life in high-cycle stamping environments.
• Tip-shape selection vs. performance trade-offs: sharper or more aggressive tip profiles (selected via H/J/K/L/N/O/R/V/X/Y/Z) generally increase cutting engagement and may increase sensitivity to wear; XNP coating helps mitigate this by protecting the contact area.

When comparing materials or treatments for similar punches, engineers typically balance hardness (for wear) against toughness (for chipping resistance). Since the steel grade and HRC are not listed here, final hardness and toughness confirmation should be verified with the supplier’s technical documentation for the selected option.

Correct sizing for this inch-standard punch series starts with selecting the correct shank diameter D and then matching the point length B & L (coded inch) to the die/cavity depth where cutting takes place.

• Shank diameter (D): choose D in the range 12 ~ 250 in to match the guide/bushing and press-fit or sliding requirements in your tooling stack.
• Standard point length: the S point length B & L is coded 150 ~ 250.
• Alternate point lengths: use the coded ranges listed for B, C, D, and E (e.g., up to 150 ~ 600, 150 ~ 700, and 250 ~ 700) when your die requires greater penetration or clearance.

Also confirm the P dimension (0.042 ~ 1.625 in) and W dimension (0.062 ~ 0.5 in) for tip geometry compatibility, and verify the R dimension (0.007 ~ 0.007 in) for corner radius matching to your shearing condition. Tolerances and fit depend on your bushing/guidance design; therefore, validate fit class and seating depth after selecting the coded lengths.