JIS Standard M2 Steel Ball Lock Ejector Punches

Ball lock ejector punches are used to drive reliable part ejection in precision metal-die and progressive tooling where repeated stripping requires stable punch engagement. The ball-lock style helps maintain positioning during die spotting and ejection strokes, reducing mismatch risk between punch and guide features.

• Progressive dies: Ideal for trimming and forming stations that demand consistent cycle-to-cycle performance; the X-tip geometry supports dependable punch contact with the workpiece.
• Heavy-duty metric die work: Suited for die sets that require durable ejector elements under high wear; the M2 steel base and XCD coating improve resistance to abrasion from repeated metal contact.
• Form tooling / ejector mechanisms: Works well where a compact, controlled tip profile improves engagement and repeatability during stripping of formed parts.

This specific X-tip variant, paired with M2 steel and XCD coating, is a strong fit when you need both stable ball-lock retention and wear-focused surface durability in metric die applications.

The punches are offered in M2 (JIS Standard M2 steel) or PS4, enabling selection based on wear versus toughness needs. JIS M2 is commonly aligned with high-speed steel performance characteristics and is selected here for improved hot hardness and resistance to repeated cutting/impact conditions typical of die ejection and punching.

When hardened (typical heat-treated tool steel practice), M2 provides strong hardness for wear resistance, but toughness can decrease if over-hardened. Surface durability is further enhanced by the stated XCD coating, which improves abrasion resistance at the tip where repeated engagement occurs.

• M2 + XCD: Prioritize wear resistance for heavy-duty cycles and abrasive contact.
• PS4 option: Choose based on your shop’s target balance of toughness and wear for your specific forming/trimming loads.

Exact hardness (HRC) and the precise heat-treatment cycle are not specified in the provided data, so confirm with the supplier for your finalized build plan.

To select the correct ball lock ejector punch, match the shank diameter D, point length L1, and overall length L to the ejector stroke clearance and the die cavity/core depth. The available D (shank dia.) range is 10–40 mm; choose the largest D your guide system can support while maintaining proper fit in the punch bore.

• Tip geometry: This series supports variable tip shapes (H, J, K, L, N, O, R, V, X, Y, Z). Use the X shape tip when your engagement profile requires consistent punch-to-workpiece contact.
• Point length L1: Select from 10–19 mm, 13–25 mm, or 19–30 mm depending on the engagement depth into the part surface.
• Overall length L: Choose from 63–100, 63–125, 71–125, or 80–125 mm to ensure full ejection travel without bottoming.

Because the dataset lists dimensional ranges (not a single fixed tolerance), verify your die block/punch bore tolerance strategy (e.g., clearance for ball-lock seating and guidance) against your mold standards and supplier drawings.