Close Space Punch Blanks - Metric XNT DayTiN® Coating
Close Space Punch Blanks - Metric XNT DayTiN® coating from DAYTON are designed for punch tooling where minimal clearance and reliable performance are required. The XNT DayTiN® surface coating helps improve wear behavior for repeatable production.
- Close-space punch blank design supports tight tooling layouts
- XNT DayTiN® coating enhances surface durability under punching load
- Metric shank diameters 02–07 mm cover common engineering builds
- Typical use in precision punch assemblies requiring consistent blank geometry
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 close-space punch blanks are used in precision injection and metal-stamping tooling where the punch must operate with minimal clearance to protect nearby features and maintain repeatable punch geometry. They are suited to tooling layouts that prioritize compact spacing, such as automotive connector and terminal interface components, where many impressions are packed closely and alignment must remain stable during production.
- Close-clearance punch assemblies: The blank geometry supports tight tool layouts, reducing side movement and helping maintain consistent results from shot to shot.
- High-wear punching operations: The XNT DayTiN® coated surface is intended to improve wear behavior under punching load, supporting longer service life in abrasive or high-cycle environments.
- Precision small-part production: Metric shank diameters 02–07 mm make it practical for smaller punch stations that require uniform blank size and controlled fit in the punch holder.
Material & Process Details+
The provided product data specifies the XNT DayTiN® surface coating behavior, but does not list the underlying steel grade or measured hardness (HRC) or exact heat-treatment steps (e.g., quench & temper, nitriding). As a result, material selection should be confirmed from the manufacturer specification before final qualification for your wear and toughness targets.
- Coating role (XNT DayTiN®): The DayTiN-family coating is applied to enhance surface durability against punching loads and sliding/impact wear at the tool face.
- Wear vs. toughness trade-off: Coatings generally improve wear resistance, but overall punch life still depends on the core steel toughness and how the shank is supported in the tool holder.
- Comparison note: If alternative coatings are available for your build, prioritize the one that matches your expected contact pressure and cycle rate—then validate with test coupons.
Sizing & Selection Guide+
Select the punch blank shank diameter D (mm) from the available metric options: 02, 03, 04, 05, 06, 07. Choose the required overall length L (mm) within the fixed range: 40 ～ 100, based on your punch holder depth, guide support length, and required protrusion through the die insert.
- Match to cavity/core requirements: Verify that the chosen shank diameter fits the punch holder bore/retainer design with the correct clearance to prevent binding while minimizing lateral play.
- Close-space considerations: For tight layouts, prioritize the smallest feasible D that still meets strength and alignment requirements, since minimal clearance tooling benefits from reduced side deflection.
- Tolerance/fit: Use your mold designer’s standard for punch-holder fit (clearance vs. interference) and confirm the actual delivered dimensions/tolerances from the supplier for D and L before final assembly.
- Configurable vs. fixed: D is selected from discrete options (02–07 mm); L is fixed as a selectable length within 40–100 mm.
Frequently Asked Questions
Which shank diameter options are available for this close-space punch blank series?+
This series provides D (shank dia.) in metric options: 02, 03, 04, 05, 06, 07 mm. Select the smallest diameter that satisfies strength and holder fit requirements for your punch station.
What length range can be ordered for the blank, and how should I choose L for my punch holder?+
The L (length) is available within a fixed range of 40 ～ 100 mm. Choose L based on punch holder depth and required working protrusion through the die insert while ensuring stable guidance to reduce deflection.
How does the XNT DayTiN® coating help in wear-critical punching applications?+
The XNT DayTiN® coating is intended to improve surface durability under punching load, supporting better wear behavior during production. For best results, confirm that your core steel and support conditions are compatible with the coating’s wear-life expectations.
Is this blank suitable for tooling designs that require very tight clearance between features?+
Yes—this product is specifically described as a close-space punch blank, supporting tight tooling layouts where minimal clearance is required. In these designs, correct D selection and controlled holder fit are important to limit lateral movement and preserve punch geometry.
Do you provide steel grade, hardness (HRC), and heat-treatment state for this punch blank?+
The supplied product data mentions the XNT DayTiN® coating but does not list the base steel grade, HRC hardness, or heat-treatment state. Request the full material/heat-treatment certificate for your selected D and L so you can verify toughness and wear performance for your application.
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Need Custom Specifications?
Our engineering team can help with custom configurations, material selection, and volume pricing.