Ball Lock Regular Punches Heavy Duty Inch Tip Shape R

Ball-lock regular punches with Tip Shape R are used in injection-mold tooling and precision press stations where stable material piercing and consistent ejection are critical. The ball-lock feature helps secure the punch in modular holders, improving retention during repeated cycles and reducing the risk of movement that can affect cavity-to-cavity repeatability.

• Automotive connector and terminal housings: Suitable for heavy-duty inch-based mold builds that require reliable punching of thin features or inserts. Tip Shape R provides consistent punch tip geometry to support stable forming with tight dimensional control.
• Appliance and industrial component molds: Ideal for robust tool & die applications where wear resistance is needed for high-run production. The heavy-duty design supports dependable performance under continuous punching load.
• Packaging and housings with post-processing features: Works in systems where consistent part release and repeatable punching contribute to downstream assembly fit.

This punch series is available in M2, A2, and PS4 materials, enabling material selection based on wear versus toughness needs. M2 is a high-speed steel commonly used for superior wear resistance in tooling; it is typically quenched and tempered to achieve a hard cutting/punching response, with hardness usually specified in the ~60 HRC class for wear-focused applications (exact HRC depends on heat treat condition provided by the supplier).

A2 (often air-hardened tool steel) is a good balance option when you need toughness with strong wear resistance; it is also quenched and tempered to reach working hardness, trading some ultimate wear performance versus premium wear grades.

• PS4 provides an alternate steel option from the available lineup for use where a different balance of durability and manufacturability is preferred.

In all cases, the punch tip geometry relies on controlled grinding/finishing to maintain contact accuracy; hardness increases wear resistance but can reduce impact toughness if used outside recommended load conditions.

To select the correct ball-lock punch, match the shank and point dimensions to your holder and punch station requirements. This series provides shank diameter D in the range 37 ~ 125 in and multiple point-length codes.

• Tip Shape R lengths: Use the coded length ranges available for the configuration: 250 ～ 600, 250 ～ 700, 275 ～ 700, or 300 ～ 700 (as offered for the series’ standard point length L).
• B/C/D point-length options: Depending on the specific geometry configuration, point-length coded ranges are also listed as 250 ～ 600, 250 ～ 700, 275 ～ 700, 300 ～ 700, or D: 275 ～ 700 / 300 ～ 700.

Confirm P (0.05 ~ 1 in) and W (0.05 ~ 0.5 in) are compatible with your mating clearance/relief features, especially for stack-up control in mold inserts. If your holder uses a fixed seat and ball-lock groove, ensure the selected D and length code correspond exactly to the cavity/core access depth to avoid excessive protrusion or bottoming.