M2 Steel Ball Lock Pilot Punches - Round Tip, Light Duty

These light-duty ball lock pilot punches are used to establish stable part-to-die alignment in progressive stamping and progressive dies, especially when repeat press accuracy is needed but loads are moderate. The round tip ball-lock geometry helps maintain consistent locating during cycling, reducing drift in long runs.

• Automotive and appliance brackets stamping: Use the pilot to index strip steps between stations and maintain carryover accuracy in inch die tooling. The M2 steel body and CRN coating help resist wear from repeated contact with mating die components.
• Die alignment fixtures and setup tooling: Install for repeatable “plug-and-locate” positioning when setting up multiple die sets. The ball lock design improves concentric alignment for quick, repeatable changeovers.
• Light-duty inch die tooling: Suitable where pilot points see steady, controlled loads. The round tip variant supports reliable alignment without the need for heavy-duty pilot upgrades.

The base steel option for these punches includes M2, a high-speed steel commonly used for tooling where wear resistance at moderate-to-high hardness is required. The variant is also offered in PS4 (as specified for this item), providing an alternative steel choice for customers balancing cost, machinability, and durability needs.

• Wear resistance: A CRN coating is specified to improve surface durability during repeated pilot contact cycles.
• Hardness & toughness trade-offs: M2 is typically selected when higher hardness and cutting/tooling wear behavior are prioritized; steels like PS4 are chosen when a different toughness-to-wear balance is acceptable for light-duty operation.
• Heat treatment state: The provided data specifies material options and CRN coating, but does not list a specific hardness (HRC) or the exact heat treatment condition (e.g., quenched & tempered, pre-hardened, nitrided). Confirm the exact heat-treatment and HRC with the selected configuration when planning tool life.

Select the punch dimensions by matching the pilot location geometry to your mold/die cavity or guide hole requirements. Use the specified D (shank diameter) range of 25 ~ 100 in and choose the point length/overall length code ranges that fit your press stack-up and engagement depth.

• Diameter (D): Pick a D value within 25 ~ 100 in to match the corresponding pilot bore/guide feature.
• Point length & L (coded inch): Available ranges include 200 ~ 500, 200 ~ 600, 200 ~ 700, and 225 ~ 700 depending on the length code.
• B / C point length variants: Options are also provided in 225 ~ 500, 225 ~ 600, 225 ~ 700, 225 ~ 600, and 225 ~ 700 configurations; a fixed option exists for B & L = 250 ~ 700.
• P dimension: Use P = 0.05 ~ 0.749 in to align the locking/protrusion behavior with mating components. Treat fits as dependent on your die hole tolerance; validate clearance to prevent binding while maintaining locating repeatability.