Ball Lock Punches With Wrench Flat

This punch style is used in injection mold tooling where repeatable punching of locating holes or feature forming is required, especially in progressive-style assemblies and multi-station setups. The wrench-flat shank provides positive handling during assembly and setup, reducing the risk of slippage while aligning the ball-lock interface.

• Automotive connector and housing tooling: Integrate these punches at stations that create consistent hole geometry across multiple parts. Choose the wear-focused steel option to maintain punch edge stability under repeated press cycles.
• Medical device and precision component molds: Use controlled punch action for forming specialty hole features in housings or brackets where dimensional consistency matters. The ball-lock retention helps keep the tool securely positioned during ongoing production.
• Electronics and appliance insert molds: Pair with custom tip shapes to efficiently punch varied hole features, supporting fast changeovers and reliable retention in tooling.

Because the design supports selectable tip shapes (2–29) and selectable materials, it can be tuned to the hole-forming demands of each cavity tool.

This series offers two material choices: SKH51 and SKD11 equivalent steels. SKH51 is selected for wear-oriented punch performance, supporting stable cutting/impact behavior when punching repeated features. SKD11 equivalent is commonly used where balanced toughness and durability are needed for tooling components subjected to cyclical loads.

• Wear resistance vs. toughness: SKH51 typically emphasizes wear resistance for longer service in abrasive or high-cycle punching, while SKD11 equivalent can offer improved toughness behavior for consistent punch operation across varying loads.
• Heat treatment state: These punches are supplied in standard tool-steel condition suitable for punch applications; final hardness and performance depend on the manufacturer’s heat-treatment and the user’s downstream grinding/finishing requirements for the chosen variant.
• Manufacturing process: Ball-lock punching components are machined to tight geometry, then finished at critical working surfaces to ensure proper retention and controlled punch action.

Selecting the steel variant helps align tool life and dimensional stability with the expected press frequency and feature complexity.

Select the punch by matching the working geometry and overall length to the mold plate stack and the required punch penetration. Start with the tip shape selection (available range 2–29) to define the hole-feature profile you intend to produce.

• Outer diameter (D): Choose from 10, 13, 16, 20, 25, 32 mm based on clearance in the holder and guide/support conditions in your tooling.
• Length selection: Use L = 71–100 mm or L = 63–90 mm (depending on the configuration). Verify full tool reach using LC = 47–91.1 mm to match the required stroke and engagement depth.
• Critical dimensions (tip and shank): Confirm P = 2.5–7 mm, A = 0.5–1 mm, B = 0.5–1 mm, C = 0.2–1 mm, and R = 0–15.96 mm.

Because these components must seat correctly in a ball-lock interface, maintain alignment between holder bore and the specified diameter (D). Where dimensions are listed as ranges (e.g., Q fixed at 0.2–40 mm and S fixed at 0.2 mm), select the configuration that best fits your cavity/core material clearance and the punch’s required engagement.