Metric Regular Punches XNA Coating

Metric regular punches with an XNA coating are used in punch press tooling where repeatability and edge durability directly impact part quality. In progressive die applications, they pierce sheet metal at multiple stations; the coating helps maintain a stable cutting surface over long production runs, reducing tool wear that can otherwise drift hole geometry.

They are also suitable for automotive connector and bracket blanking, where consistent blank edges and reliable feeding depend on steady punch penetration and controlled wear at the point. This variant’s regular punch geometry supports dependable stock piercing while the XNA layer is selected to improve surface durability under repeated contact.

For general fabrication operations—such as forming pilot holes, quick-turn job-shop runs, or small assemblies—engineers can match tip shape options (H, J, K, L, N, O, R, V, X, Y, Z) to the required forming behavior. Select the appropriate shank diameter and point length to align with your die/cavity engagement and press stroke requirements.

• Progressive dies: maintain cutting point performance during high cycles
• Blanking of automotive components: stabilize hole quality by limiting wear progression
• General punching: choose tip shape for the specific forming/piercing response

These punches are offered in M2 or PS tool steel options. M2 is a high-speed steel grade commonly chosen for superior wear resistance at cutting edges, but it can trade off slightly lower toughness compared with tougher steels under extreme impact loading. PS is a steels option provided for alternate performance needs; when selected, it is used to balance tool life and durability for punch press duty.

The product is supplied with an XNA coating, which is intended to improve surface durability at the cutting interface. In service, this helps resist abrasion and mitigates edge degradation during repeated punching cycles.

Because exact heat-treatment hardness values (e.g., HRC targets) are not provided in the supplied data, hardness cannot be stated here. For best results, select the steel grade (M2 or PS) based on your expected wear rate and the mechanical severity of your forming operation, then pair it with the correct tip shape for the sheet material and clearance strategy.

• M2: high wear resistance for cutting edges; toughness trade-offs under severe impact
• PS: alternative steel choice for tool-life optimization
• XNA coating: improves cutting-surface durability during repeated punching

Correct sizing ensures stable guiding, proper die clearance function, and consistent piercing results. Start by matching the D (shank dia.) to your punch guide and retention system: the available range is 4 ~ 32 mm.

Next, choose the L1 (Point Length) based on penetration requirement and the die geometry. Available point-length groups are 8–13 mm, 13–19 mm, 19–25 mm, and 25–30 mm. For overall tool stick-out and packaging under the press, select L (Length) from the available options: 40–100 mm, 50–100 mm, 56–100 mm, or 63–100 mm.

For fine clearance/edge behavior, align the cutting geometry parameters: P = 0.8–10 mm, W = 1.3–10 mm, and R = 0.2 mm are available within the specified ranges. Tip shape (H, J, K, L, N, O, R, V, X, Y, Z) is configurable—select it to match the sheet punching/forming response while keeping the shank and lengths fixed to your mold/die layout.

• Match D to guide bore/punch holder specs (4–32 mm)
• Match L1 to required penetration and point engagement
• Match L to available stack-up and safe operating stroke
• Verify geometry parameters P/W/R against your clearance and edge-quality targets