Inch Light Duty Ball Lock Ejector Punches - X-Shaped Tip

These inch light-duty ball lock ejector punches are used in injection and die-casting tooling where repeatable ball lock retention and ejection are required during regular cycling. The X-shaped tip supports controlled engagement, helping the ball lock system maintain consistent contact under load and during stroke reversals.

• Progressive/transfer die work for small parts: Suitable when the die set needs dependable ejection while keeping punch-to-punch location stable; the X-shaped tip assists consistent retention so ejection is predictable.
• Thin-wall die components and die workpieces: The light-duty inch format supports compatibility with standard inch punch systems, reducing integration issues when upgrading or servicing existing tooling.
• Ball-lock retention in multi-cavity tooling: Works well where multiple stations require uniform behavior; stable retention improves ejection reliability across frequent cycles.

Material and heat-treatment details are not provided in the available specifications for this item. For ball lock ejector punches in general, tool steel is typically selected for a balance of wear resistance (to resist tip and guide contact) and toughness (to limit chipping during repeated cycling). Heat treatment is commonly implemented as quench-and-temper for toughness or as surface hardening (e.g., nitriding) when additional wear resistance is required.

When comparing variants, the practical difference between tip shapes (including the X-shaped tip) is usually functional geometry rather than alloy; however, final hardness and wear performance are primarily determined by the steel grade and the specified heat-treatment route. For exact hardness (HRC) and process state (pre-hardened vs. quenched & tempered vs. nitrided), confirm with the technical data sheet or request from the supplier.

Select the correct punch by matching the inch shank diameter and length to your cavity/core and guide requirements. The D (shank dia.) is available at 0.3750, 0.5000, 0.6250, 0.7500, 0.8750, and 1.0000 in. Choose L (length, coded inch) within the fixed range of 250 to 450 to ensure full travel without bottoming.

Then verify the tip geometry for retention clearance and engagement. The P dimension is variable across multiple bands (0.376–0.875, 0.501–1.25, 0.626–1.5, 0.751–1.5, 0.876–1.75, 1.001–1.75 in), while the W dimension ranges 0.062–0.867 in. The R dimension provides tip/edge radius options (0.007–0.4375, 0.007–0.625, 0.007–0.75, 0.007–0.875 in) depending on configuration.

• Fit/tolerance: use your punch bore and ball-lock mechanism tolerances to confirm clearance; ball-lock retention performance depends on consistent engagement geometry.
• Configurable vs fixed: Tip shape is variable (H, J, K, L, N, O, R, V, X, Y, Z), while L is fixed by the coded inch range.