Metric Close Space Punch Blanks with XNAD Coating

Q: Which shank diameters (D) are available for this metric close-space punch blank series?

This series provides discrete metric shank diameters: D = 02, 03, 04, 05, 06, 07 mm . Select the diameter based on your punch guidance requirements and the retainer/punch holder fit in your die assembly.

Q: How do I choose the punch blank length (L) for my die block thickness?

Use the available length range L = 40–100 mm to match your tool stack-up. Plan for the required punch penetration and the holder engagement length to ensure the punch aligns correctly during trial runs.

Q: What does the XNAD coating contribute when building close-space punching tools?

The key functional feature provided is the XNAD coating , designed to improve surface durability and reduce wear during repeated cycles. For close-space die layouts, reduced wear helps maintain consistent punch-to-die interaction and stable performance over time.

Q: How should I verify compatibility with punch holders in tight die clearances?

Because the product is intended for close-space die layouts, compatibility depends on both the chosen D and your assembly’s clearance and fit strategy. Confirm critical fit/tolerance details with the punch holder, particularly for the smallest shank diameters (D 2–3 mm).

Metric close space punch blanks (XNAD coating) from DAYTON are engineered for compact die layouts, helping simplify punching tool construction while maintaining stable fit and consistent machining results.

Close-space punch blank format supports tight die clearances for efficient tool design.
XNAD coating improves surface durability to reduce wear during repeated cycles.
Metric shank diameters D 2–7 mm cover common punch blank applications.
Available lengths L 40–100 mm to match die block thickness requirements.

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Specifications

6 configurations available

D (Shank dia.) (mm)	L (Length) (mm)
02	40 ～ 100
03	40 ～ 100
04	40 ～ 100
05	40 ～ 100
06	40 ～ 100
07	40 ～ 100

Product Guide

🏭Application Scenarios+

These metric close-space punch blanks are used to build compact punching toolsets where die space is limited and clearances must remain tightly controlled. In automotive connector and terminal tooling, the close-space geometry supports efficient die layouts, helping maintain alignment over repeated press cycles. The XNAD-coated surface helps resist wear on the punch working areas, which is beneficial when producing parts at high repetition rates.

They are also well-suited for electrical and appliance sheet-metal stations that require stable machining results during tool fitting and trial runs. The short, interchangeable lengths (L 40–100 mm) simplify matching punch penetration to die block thickness without reworking holders. In small- to mid-frame progressive die assemblies, the metric shank sizes D 2–7 mm allow engineers to select a compatible punch profile for reliable guidance and consistent punch performance.

Compact die layouts with tight clearances
High-cycle punching where wear resistance matters
Metric compatibility for common punch blank shanks

🔧Material & Process Details+

The provided dataset specifies the product variant by form factor and XNAD coating, but it does not list a base steel grade, hardness (HRC), or heat treatment state. Therefore, material-property claims such as exact HRC levels, quenched-and-tempered conditions, or nitriding parameters cannot be stated from the available information.

For selection purposes, treat the XNAD layer as the key functional characteristic: it is intended to improve surface durability and reduce wear during repeated punching cycles. This typically trades off against coating thickness/finish constraints, so tight-fit holders and close-space die clearances should be verified for your specific clamp and alignment tolerances.

Coating focus: XNAD wear durability for repeated cycles
Material/heat treatment: not specified in input data
Hardness: not provided; confirm from the supplier datasheet if required

📐Sizing & Selection Guide+

Start by matching the punch blank shank diameter to your die assembly guidance and punch retainer requirements. This series offers D (shank dia.) = 02, 03, 04, 05, 06, 07 mm; select the smallest diameter that still meets your alignment and strength needs for the sheet/feature being punched.

Next, set the required punch working length by choosing L = 40 to 100 mm within the fixed range. Use L to account for the die set stack-up: punch height above the die surface, die block thickness, and any spacer/stripper or holder engagement length in your tool.

Fit/clearance: because it’s a “close-space” format, verify die clearance assumptions in your CAD and trial setup.
Tolerance check: confirm any critical fit tolerances in your punch holder before final assembly, especially at the smallest shank sizes.
Fixed vs configurable: L is fixed to discrete selectable values within 40–100 mm; D is discrete at 2–7 mm.

Frequently Asked Questions

Which shank diameters (D) are available for this metric close-space punch blank series?+

This series provides discrete metric shank diameters: D = 02, 03, 04, 05, 06, 07 mm. Select the diameter based on your punch guidance requirements and the retainer/punch holder fit in your die assembly.

How do I choose the punch blank length (L) for my die block thickness?+

Use the available length range L = 40–100 mm to match your tool stack-up. Plan for the required punch penetration and the holder engagement length to ensure the punch aligns correctly during trial runs.

What does the XNAD coating contribute when building close-space punching tools?+

The key functional feature provided is the XNAD coating, designed to improve surface durability and reduce wear during repeated cycles. For close-space die layouts, reduced wear helps maintain consistent punch-to-die interaction and stable performance over time.

Is this punch blank specified with a particular steel grade or heat treatment in the provided data?+

No. The input data does not include the base steel grade, hardness (HRC), or heat treatment condition (e.g., quenched & tempered, nitrided). If hardness or specific heat treatment is required for your process, request the material datasheet for this series.

How should I verify compatibility with punch holders in tight die clearances?+

Because the product is intended for close-space die layouts, compatibility depends on both the chosen D and your assembly’s clearance and fit strategy. Confirm critical fit/tolerance details with the punch holder, particularly for the smallest shank diameters (D 2–3 mm).