Dayton Lamina Hjb 75 425 M2 Solid Die Blank Punch Ball Lock

Product Description

The DAYTON LAMINA HJB 75 425 M2 is a solid mold die blank punch from the Jektole (HJB) series, engineered for precision blanking and die-making operations in toolroom and production stamping environments. Constructed from M2 grade high-speed steel with a hardness of 60-63 HRC, this punch delivers the wear resistance and toughness required for demanding press applications. The ball lock retention system provides secure, repeatable seating in the punch holder. With a 4.25-inch overall length and a 0.75-inch shank diameter, this blank punch is sized for standard mold and die assemblies used by tool and die makers and press room technicians.

This blank punch is intended for use in metal stamping and die fabrication applications where a machinable punch body is required. The Jektole (HJB) series is a recognized standard in progressive die and mold tooling, suitable for residential and commercial production tooling setups. The unfinished, solid blank profile allows machinists to grind or machine the working end to a custom profile, making this punch appropriate for short-run custom tooling as well as high-volume progressive die builds.

Key Features

• M2 high-speed steel construction with 60-63 HRC hardness for extended tool life under high-cycle press conditions
• Ball lock shank design for positive retention and fast changeover in compatible punch holders
• Solid blank body with 0.5-inch minimum machinable length, allowing custom profile grinding by the end user
• 0.0625-inch pin extension length for precise holder engagement
• 4.25-inch overall length with 0.75-inch shank diameter for compatibility with standard die set configurations
• Jektole (HJB) series design, a widely used standard in progressive and mold die tooling

Compatibility

Designed as an OEM-style replacement or direct toolroom blank for Jektole (HJB) series punch holders and die sets requiring a ball lock, 0.75-inch shank diameter blank punch.

Installation Notes

Installation and machining should be performed by a qualified tool and die maker or press room technician. De-energize and lock out the press before servicing or changing any punch tooling in accordance with applicable OSHA lockout/tagout requirements. Verify ball lock engagement and punch alignment within the die set before resuming press operation. The blank working end must be machined or ground to final profile before use in a production application.