Ball Lock Regular Punches - Heavy Duty, Inch

These heavy-duty ball lock punches are used in injection and stamping-type die sets where the punch must stay positively retained during repeated cycling. The ball-lock interface provides reliable retention, helping prevent punch loosening or micro-movement while the tool is under impact and side load from production runs.

• Industrial connector and terminal dies: Select the inch-format shank for standard die layouts and consistent punch presentation; the retention stability supports high-throughput punching and forming steps.
• General-purpose forming/ejection stations: The configured tip shapes (H, J, K, L, N, O, R, V, X, Y, Z) let you match the forming profile or ejection geometry to the part, improving repeatability across batches.
• Die applications requiring hardened tool steel: The tool-steel options (M2, A2) are suited to wear-prone operations, supporting long service intervals under abrasive cutting edges.

Choose this variant when ball lock retention and hardened steel wear performance are critical for reliable die operation.

This punch series is offered in M2 or A2 tool steel, both commonly used for hardened die components where a balance of hardness and wear resistance is required.

• M2: Typically corresponds to AISI M2; after quench and temper to a hardened condition, it provides strong wear resistance for cutting and punching edges. Expect good toughness, but the exact trade-off depends on the final tempering level.
• A2: Typically corresponds to AISI A2; also hardened via quench and temper. It is often selected for durable punch performance where impact resistance and dimensional stability are important.

The hardened state is intended to deliver high surface hardness (commonly expressed in HRC in tooling specs) to resist abrasive wear, while maintaining sufficient toughness to survive cycling stresses. Final hardness and microstructure are set by the manufacturer’s heat-treatment recipe for each grade.

Select the punch dimensions by matching the tool holder/punch assembly geometry to the die cavity/core requirements. Use the provided shank diameter and length ranges to ensure proper fit and retention under the ball lock system.

• Shank diameter, D (in): Choose from 37 ~ 125 (inches as coded in your system). Confirm it matches the mating ball-lock bore/retainer diameter in your die components.
• Punch length, L (coded inch): Select from 250 ～ 450 or 275 ～ 450 based on stack height, holder depth, and clearance to moving ejectors.
• Working geometry: Match tip-related dimensions P (0.376 ~ 1.251), W (0.062 ~ 1.083), and R (0.007 ~ 0.4375 / 0.007 ~ 0.625 / 0.007 ~ 0.75 / 0.007 ~ 0.875 / 0.007 ~ 1 to the required profile for the part feature.

Because ball-lock retention depends on the interface fit, verify any standard mating tolerances in your die design; this series uses fixed dimensional ranges rather than configurable dimensions.