Ball Lock Pilot Punches Tapered Tip, Light Duty, Inch

These light-duty ball lock pilot punches are used to locate and register die components in progressive and transfer press tooling, where repeatable start position is critical for consistent part geometry.

• Automotive and appliance brackets: The tapered nose helps guide the punch into a mating hole with reduced start-up force, improving alignment during high-cycle press operation.
• Packaging and thin-gauge forming dies: The light-duty sizing and ball-lock locating action support stable part registration without over-constraining softer die steels.
• General metal stamping pilot stations: Inch shank diameters allow straightforward matching to common pilot tooling layouts, helping ensure repeatable die setup and reduced misfeed risk.

The tapered tip variant is especially suited to applications needing controlled guided entry while maintaining positive locating via the ball lock mechanism.

Available material options are M2 and PS4. M2 is a high-speed steel typically chosen for higher wear resistance under abrasive cycling; PS4 is selected when a balance of wear capability and toughness is needed for light-duty pilot locating components.

• M2: Commonly quenched and tempered to achieve practical tooling hardness for wear resistance. Expect strong edge stability and good resistance to rounding in locating features.
• PS4: Hardened wear-resistant construction designed to maintain locating accuracy during press cycles while supporting improved toughness compared with higher-hardness-only choices.

For both variants, the manufacturing process is typically machining followed by hardening (quench & temper for hardened steel grades) to establish the hardened working condition. Trade-offs mainly involve wear resistance versus toughness: M2 generally favors wear performance, while PS4 can offer a more favorable toughness/finish balance for light-duty tooling.

Correct selection starts with matching the shank diameter (D) to your pilot hole/locating pocket: the available D range is 0.3750" (37), 0.5000" (50), 0.6250" (62), 0.7500" (75), 0.8750" (87), and 1.0000" (100).

• Point length and overall length: Standard point length & L are offered in coded inch ranges of 250–600 or 250–700 depending on the option.
• Point length variants: B & L coded ranges are 250–600 / 250–700, and the C variant includes 275–600 / 275–700 (with a fixed “D point length” option shown as 275–700).

Match the point/overall length so the ball-lock locating function fully engages before the taper bottoms out, while allowing safe clearance for die stack-up. If your assembly uses close fits, consider your press-die tolerance band to prevent binding; use the specified inch dimensions as the primary fit determinant since dimensions are selectable (variable) within the listed ranges.