Metric Close Space Punch Blanks - CRN Coating

Q: Which shank diameter options are available for these metric close-space punch blanks?

The available D (shank dia.) options are 02, 03, 04, 05, 06, and 07 mm . Choose the D value that matches your punch holder or guide bore to maintain proper guidance and alignment.

Q: What length range can I select for the punch blank?

The L (length) selection range is 40 ～ 100 mm . Select L based on required stick-out and safe engagement at the punching station while respecting your die height and stroke constraints.

Q: How does the CRN coating affect blanking durability in close-space die layouts?

The CRN coating is specified to improve surface durability and help reduce wear during repeated blanking cycles. In close-space geometries, where rubbing and contact conditions are more severe, the coated surface supports more consistent punch blank performance.

Q: Are these punch blanks intended for progressive or transfer die systems?

Yes. The product description states it is appropriate for punch tooling in progressive and transfer die systems . That makes it suitable for applications where the punch blanks operate through repeated strokes at each station.

Q: Do you provide a specific base steel grade and hardness for this product?

The provided data includes CRN coating and dimensional specs (D and L), but it does not list the base steel grade, heat treatment state, or hardness in HRC. For heat-treatment and hardness selection, use your tooling requirements and request the material certificate from your Axiom Molds technical contact if needed.

Metric close space punch blanks with CRN coating are engineered for compact die layouts where limited clearance demands reliable punching performance. The coated surface supports stable operation during repeated blanking cycles and helps protect the punch blank finish.

Close-space geometry supports efficient blanking in tight die cavities
CRN coating helps reduce wear and improves surface durability
Metric shank diameters simplify standard tooling integration
Appropriate for punch tooling in progressive and transfer die systems

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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 with CRN coating are used in precision blanking areas where toolmakers must maintain performance despite very tight die clearances. They are well suited for progressive and transfer die tooling, where punches see high cycle counts and need consistent cutting edge support throughout repeated strokes.

Automotive connector and terminal blanking: The close-space geometry helps deliver efficient blanking in limited-clearance tool layouts, while the CRN surface promotes stable wear behavior over production runs.
Electrical enclosure contact or sheet part production: For operations that require repeatability in compact die stations, the metric shank diameters support straightforward integration into standard punch holding arrangements.
General industrial formed component dies: When die cavity space is constrained, the fixed length range and coated surface help protect the punch blank finish during ongoing punching cycles.

🔧Material & Process Details+

The provided configuration specifies CRN coating for wear and surface durability, but it does not list the underlying steel grade or any heat treatment condition (e.g., quench & temper, nitriding). As a result, hardness in HRC and specific alloy equivalencies (such as H13 or M2) cannot be stated from the available data.

CRN coating: Designed to improve surface resistance during repeated blanking, supporting longer usable punch blank life under abrasive and rubbing contact.
Heat treatment: Not provided for the base material; select tool steel and heat treatment based on your strain/load requirements and desired toughness.
Trade-offs: If you choose a harder base steel for wear resistance, you typically need to balance toughness to avoid edge chipping in close-space contact conditions.

📐Sizing & Selection Guide+

Select a punch blank size that matches your punch holder/guide dimensions and your die’s close-space requirement. Use the spec range for D (shank dia.) of 02, 03, 04, 05, 06, or 07 mm, then choose the required L (length) from 40 ～ 100 mm.

Match shank diameter (D): Confirm the punch holder bore/guide support accepts the chosen D value to prevent misalignment or excessive clearance.
Set working length (L): Ensure L provides adequate stick-out and support for the station stroke while maintaining safe engagement in the close-space die layout.
Tolerance & fit: Use your press tooling tolerances for the shank interface; even small deviations can affect guidance and cutting stability in tight die cavities.
Configurable vs. fixed: D is configurable from the listed set, while L is selected within the fixed 40–100 mm range.

Frequently Asked Questions

Which shank diameter options are available for these metric close-space punch blanks?+

The available D (shank dia.) options are 02, 03, 04, 05, 06, and 07 mm. Choose the D value that matches your punch holder or guide bore to maintain proper guidance and alignment.

What length range can I select for the punch blank?+

The L (length) selection range is 40 ～ 100 mm. Select L based on required stick-out and safe engagement at the punching station while respecting your die height and stroke constraints.

How does the CRN coating affect blanking durability in close-space die layouts?+

The CRN coating is specified to improve surface durability and help reduce wear during repeated blanking cycles. In close-space geometries, where rubbing and contact conditions are more severe, the coated surface supports more consistent punch blank performance.

Are these punch blanks intended for progressive or transfer die systems?+

Yes. The product description states it is appropriate for punch tooling in progressive and transfer die systems. That makes it suitable for applications where the punch blanks operate through repeated strokes at each station.

Do you provide a specific base steel grade and hardness for this product?+

The provided data includes CRN coating and dimensional specs (D and L), but it does not list the base steel grade, heat treatment state, or hardness in HRC. For heat-treatment and hardness selection, use your tooling requirements and request the material certificate from your Axiom Molds technical contact if needed.