Metric Ball Lock Pilot Punches - Tapered Tip, Heavy Duty

Metric ball lock pilot punches are used in injection mold tooling and precision mold assemblies to ensure repeatable alignment between clamp plates, slides, and components that require exact locating. The tapered tip variant is especially suited for controlled entry and stable center guidance during high-cycle press or molding cycles where misalignment can cause wear or lead to flash.

• Die/die-set locating in progressive or transfer forming: select this pilot punch for consistent part locating and ball-lock engagement, using the tapered nose to guide the punch into its mating bushing with reduced risk of initial skew.
• Automotive connector or bracket tooling: the heavy-duty design supports stable assembly performance when frequent changeovers and long production runs demand dimensional stability.
• Medical or electronics housing fixtures: precise alignment helps maintain cosmetic and functional cavity features by preventing drift at the locating interface.

Available M2 steel options help resist wear and maintain alignment over time, supporting long, stable production.

This series offers M2 or PS4 material options. M2 (AISI M2 equivalent) is a high-speed steel known for strong wear resistance under repetitive contact and good red-hardness for sustained tooling operation. PS4 is a tool steel option typically selected when a balance of machinability and durability is required for locating components.

• Hardness/heat treatment: both options are typically supplied as tool steels suitable for hardening and subsequent tempering to achieve the required working hardness for pilot and locating interfaces.
• Trade-off: increasing hardness improves wear resistance and dimensional stability, while excessive hardness can reduce toughness and increase sensitivity to impact or edge damage.
• Wear resistance vs. toughness: for repeated ball-lock engagement and guided entry, choose the harder-wearing option (often M2) while ensuring the temper level supports sufficient toughness for your operating loads.

Use the shank and tip dimensions to match the pilot interface geometry in your mold assembly. Start with the D (shank dia.) = 10 ~ 40 mm to select the correct locating clearance and strength for the mating guide or ball-lock bushing.

• Tip control: choose P (tip diameter) = 1.45 ~ 30 mm to ensure the tapered nose enters reliably without excessive clearance that could translate into cavity misalignment.
• Guided reach: match L1 (point length) options of 19 ~ 62, 19 ~ 92, 25 ~ 102, or 30 ~ 102 mm to provide sufficient guided engagement before full seating.
• Total punch reach: select L (length) = 80 ~ 110, 80 ~ 140, or 80 ~ 150 mm based on your stack height, mounting surface locations, and ball-lock depth.

Where applicable, design for tooling tolerances between the pilot punch and the mating bushing/ball-lock components so the taper improves initial entry while maintaining repeatable centering. Fixed configurations follow the listed ranges; ensure your selection locks to the exact D/P/L/L1 variant required by the cavity/core alignment scheme.