M2 Steel Ball Lock Regular Ejector Punches

These M2-steel ball lock ejector punches with an X-shaped tip are used in injection mold tooling and die sets where consistent part release is required under light-duty conditions.

Scenario 1: metric progressive and transfer dies—the ball lock retention style helps keep the punch position stable in the die block, supporting repeatable ejection cycles and uniform contact during part release.

Scenario 2: light-duty connector and housing components—the controlled point geometry of the X-shaped tip promotes reliable ejection with predictable stroke loading, which is important for thin-wall features or part geometries that are sensitive to uneven push-off.

Scenario 3: production runs requiring wear-stable ejection—the M2 material selection targets wear resistance so the tip profile remains consistent over time, reducing variation in ejection height and preventing early punch tip degradation.

• Ball lock design improves positional retention for repeatability.
• X-shaped tip supports controlled contact and light-duty ejector performance.
• M2 wear resistance helps maintain consistent ejection under production cycling.

This series is offered in M2 steel (optionally also PS4), targeting wear resistance for ejector punch applications.

M2 steel (commonly associated with AISI M2 high-speed steel) is selected for its balance of hardness and wear performance. In mold tooling use, M2 punches are typically supplied in a heat-treated condition intended for good abrasion resistance, with quenched & tempered or similar hardened states to achieve durable cutting/impact-resistant behavior.

Wear vs. toughness trade-off—higher hardness improves tip wear resistance but can reduce impact toughness compared with softer steels. For light-duty die work, the goal is to preserve tip geometry for controlled ejection rather than to withstand extreme shock loads.

• HRC and exact heat treatment condition are dependent on the supplied configuration; verify at quotation for your selected stock/material variant.
• PS4 is offered as an alternative material option for different performance priorities; compare based on your wear and load conditions.

Correct selection starts with matching the ejector geometry to the die/core space and the required ejection travel characteristics. Use D (shank diameter) = 6 ~ 38 mm to fit the guide bore or ejector hole size in your die block.

Next, choose the L1 (point length) from the available ranges (10–13, 10–19, 13–25, 19–30) based on how deep the tip must engage for part release without over-insertion.

Then confirm the overall L (length): available ranges are 63–100, 71–100, or 80–100. Finally, select the tip/geometry parameters—P = 1.4–12 mm, W = 1.4–14 mm, and R = 0.2 mm—to align with your contact footprint and part support requirements for the chosen X-shaped (or other) tip configuration.

• Ensure clearance fits in the die block and check positional retention requirements for ball lock punches.
• Verify tolerance/fit with your specific die drawing; ball lock retention can be sensitive to hole size and alignment.