Ball Lock Pilot Punches Round Tip Light Duty CRN Coating

These M2 steel ball-lock pilot punches with a round tip are used in injection and stamping-style tooling where repeatable part location is required under light-duty inch die tooling conditions. The ball-lock mechanism helps maintain stable alignment during successive press cycles, reducing the risk of drift that can affect fit and downstream assembly.

• Progressive dies and fine blanking: Install the pilot on strip-fed stations to improve carrier-to-die repeatability; the CRN coating supports wear resistance across repeated indexing and seating events.
• Die alignment fixtures and changeover tooling: Use them as locating leaders when quickly swapping die sets; the round tip provides consistent center guidance into mating bushings or pilots.
• Light-duty connector and bracket forming: In housings and brackets where dimensional tolerance is moderate, the ball-lock design improves locating repeatability without requiring heavy-duty press components.

Choose the CRN-coated variant for higher abrasion resistance at the tip/ball interface compared with uncoated pilots, especially when cycles are frequent but loads are not extreme.

The product is available in M2 and PS4 steel. M2 (commonly matched to AISI M2 high-speed steel chemistry) is selected for a balance of hardness and wear resistance, which is beneficial at the ball-lock interface where repeated micro-contact occurs. The variant includes a CRN coating to enhance surface wear performance and help maintain dimensional stability through repeated press cycles.

Typical performance trade-offs for this type of steel center on wear resistance versus toughness: higher hardness improves abrasion resistance but can reduce impact tolerance if improperly loaded. For best results, use the specified steel option based on your expected cycle count and load severity, and ensure the contacting bushing or mating pilot is also suitable for CRN-compatible wear patterns.

• Coating: CRN for wear resistance at the locating surface
• Heat treatment state: not specified in the provided data (confirm with supplier for your exact part revision)
• Hardness (HRC): not specified in the provided data; verify for tolerance-critical applications

To select the correct ball lock pilot punch size, match the locating diameter and length to your mating components (pilot holes, bushings, or alignment registers) and your die thickness stack-up.

• Shank diameter (D): choose from 25 ~ 100 in (inch units as provided). Select D so the pilot seats with proper clearance to prevent binding while maintaining location stability.
• Point/length options: standard point length & overall length L are offered in coded inch ranges: 200–500, 200–600, 200–700, and 225–700. Point length B & L variants are also available in 225–500, 225–600, and 225–700, with additional C options 225–600 and 225–700.
• Fixed constraint: the fixed B & L range is 250–700, so ensure your die build height can accommodate this.

Because only coded inch ranges are provided, verify the exact printed dimensions and tolerances for your bushing/cavity core before finalizing your die layout—especially where pilot contact affects final part location.