Ball Lock Punches with Wrench Flat

Ball lock punches with a wrench flat are used to provide quick, repeatable engagement between tooling elements such as die blocks, fixture plates, and jig components. In assembly operations, the locking ball detail helps maintain positive retention, reducing shift during handling and clamping.

• Jig and fixture locating: Select these punches when you need fast lock/unlock for setup changes while holding stable alignment for machining or inspection fixtures. The wrench flat supports controlled installation and service without disturbing seating.
• Automotive and industrial tooling: Use hardened SKD11-equivalent or SKH51 variants where repeated cycling can wear standard locator hardware. The hardened steel and repeatable dimensions support consistent positioning over multiple production runs.
• Press and die setting: Ideal for tool and die assemblies that require secure, indexed connections during setup. The controlled tip/shank geometry supports reliable punch seating and alignment in the mating components.

Two hardened steel options are available to balance wear resistance and toughness for tooling environments. SKD11 equivalent is commonly associated with high-durability die steel performance; it is suited to parts that experience sliding wear and frequent use. SKH51 is a high-speed steel option (often referenced as comparable to AISI M2) and is typically selected for superior wear resistance in applications that demand stable hardness under repeated engagement.

• Wear vs. toughness trade-off: SKH51 tends to provide stronger wear capability, while SKD11-equivalent can offer robust durability for many general tooling setups.
• Heat treatment state: The series is offered as hardened material choices, designed for stable hardness after heat treatment.
• HRC and microstructure: Exact HRC levels are not specified in the provided data; final hardness should be confirmed to your internal drawing/inspection standard after heat treatment.

Proper dimension matching ensures the ball lock punch seats correctly and achieves repeatable alignment in the mating cavity/cored hole. Start by selecting the required outer diameter D from the available options: 10, 13, 16, 20, 25, or 32 mm. Then choose the appropriate L (length) range based on stack height and engagement depth needs: 71–100 mm or 63–90 mm.

• Tip and ball engagement geometry: The Tip Shape is selectable from 2 to 29, and related engagement-critical dimensions include A (0.5–1 mm), B (0.1–1 mm), C (0.2–1 mm), and P (2.5–7 mm).
• Full length alteration LC: Pick LC = 47 to 91.1 mm to match the required variation across tooling assemblies.
• Tolerance/fit considerations: Dimensions such as S (0.2 mm fixed) and small-range features like Q (0 or 0.2–40) and R (0–15.96) indicate sensitivity at the interface; verify mating hole dimensions and tolerances to prevent misalignment or inconsistent locking.