Metric Ball Lock Pilot Punches - Tapered Tip Light Duty

Ball lock pilot punches with tapered tips are used in metric die assemblies to locate parts precisely and to stabilize punch guidance during press operations. Their ball-lock retention helps maintain engagement under vibration, supporting repeatable alignment from the first hit to the production run.

Common scenarios include:

• Automotive and industrial stamping die sets: tapered entry improves centering as the pilot engages, reducing side load risk and helping ejector/punch systems stay on position.
• Die assemblies for thin-walled components: the light-duty configuration is well suited where exact pilot control is needed but extreme compressive loads are not dominant.
• Die components requiring consistent part transfer: the pilot point length options allow designers to tune engagement depth for reliable starts and controlled ejection timing.

Choose the tapered-tip, ball-lock variant when you need accurate locating with stable retention across a broad D (shank dia.) range.

The provided data for this product does not specify a steel grade, hardness (HRC), or heat treatment state. As a result, material-property claims cannot be made from the current metadata.

For accurate material selection in ball-lock pilot punch applications, engineers typically confirm with the supplier the steel specification (e.g., a known equivalent such as SKD61 (H13 equivalent)) and the heat treatment (e.g., quenched & tempered or nitrided) that targets the needed wear resistance and toughness balance for pilot engagement.

• Request the heat treat and hardness details to verify wear resistance at the tapered point.
• Confirm whether the finish and surface treatment are intended to improve galling resistance during repeated press cycling.

Select dimensions by matching the pilot’s shank and point geometry to the die’s locating and guide features. This light-duty metric design is offered across a D (shank dia.) range of 10 ~ 38 mm, enabling fit to different guide/holder bores and pilot bushings within the die assembly.

Use the engagement geometry to tune pilot start and guidance:

• Choose L1 (Point Length) from the available sets: 19~72, 19~102, 25~112, or 30~112 mm.
• Select overall L (Length) from available ranges: 71~110, 71~140, 71~150, or 80~150 mm to ensure correct stand-off and full guidance during stroke.
• Verify P (Dimension) from 1.45 ~ 30 mm to align with the tapered point/pilot interface requirements.

Where pilot bores/bushings require a sliding fit, confirm the supplier’s tolerance on D so the ball-lock retention does not cause binding during cycling.