Close Space Punch Blanks - Metric XCDP Coating

Close-clearance punch blanks are used in injection mold tooling and precision part-forming stations where the punch must enter with minimal side clearance to maintain dimensional accuracy. In production, they suit tight-tolerance connector and terminal molds, helping limit wobble during piercing/slug ejection and improving repeatability over long cycles.

They are also well suited for medical device housings and other regulated components that require consistent cut edges and stable tool alignment. The XCDP coating supports improved resistance to wear and scoring at the punch face and sliding surfaces, which helps maintain smooth punch motion and reduces the risk of micro-galling under frequent strokes.

• Use in close-clearance punch operations within metric tooling assemblies.
• Choose the shank diameter option to match the holder’s locating requirements for stable fit.
• Plan blank length from 40 to 100 mm based on required working depth and tool layout.

The provided product data specifies a close space punch blank with XCDP coating, but does not list the underlying steel grade or numeric hardness (HRC) in the specifications. Therefore, only coating-relevant performance can be stated from the available information.

XCDP coating is selected to improve wear resistance and reduce scoring during repeated punching. In practical toolmaking, this coating choice helps balance surface durability with reliable sliding contact, which is critical when clearance is minimal.

• Heat treatment: Not specified in the provided data (no stated quenched & tempered, nitrided, or pre-hardened condition).
• Hardness (HRC): Not provided, so exact HRC cannot be confirmed.
• Trade-offs: Since the substrate and heat treatment are not disclosed, coating performance should be treated as the primary differentiator for wear/scoring in this variant.

Select the punch blank by matching the shank diameter (D) and blank length (L) to your holder and working stack. The available shank diameter range for this series is D = 2, 3, 4, 5, or 6 mm, which should correspond to the holder’s locating bore/guide to prevent lateral movement in close-clearance tooling.

Choose L = 40 ～ 100 mm to achieve the required working length for the tool assembly. Measure the distance from the holder seating face to the intended punch working end, then select the nearest length that provides sufficient protrusion while keeping the punch supported.

• For minimal clearance applications, prioritize correct D for concentricity and stable fit.
• Account for any additional components in the tool stack when determining L.
• Tolerance guidance (fit/clearance) cannot be quantified from the provided data; validate clearance with your existing holder dimensions and standard punch fit practices.