Dayton Lamina Hjb 125 425 M2 Solid Mold Die Blank Punch

Product Description

The DAYTON LAMINA HJB 125 425 M2 is a solid mold die blank punch designed for precision tooling applications in metal stamping and die work. Built from M2 grade high-speed steel, it delivers consistent performance under high-cycle punch press conditions. The shank diameter measures 0.2030 inches, with a pin extension length of 0.0625 inches and a minimum machinable length of 0.5 inches. The overall length (OAL) is 4.25 inches. Hardness is rated at 60-63 HRC, making it suitable for demanding production environments. The ball lock retention system provides quick, repeatable seating in the die set without additional fasteners.

This blank punch is used in metal stamping dies, mold tooling, and progressive die assemblies. It is well suited for applications where a solid, unformed punch face is required prior to custom grinding or profiling by the tool and die maker. The Jektole (HJB) series is a recognized standard in industrial punch tooling, commonly specified in manufacturing, fabrication, and toolroom environments where interchangeability and consistent dimensional tolerances are required.

Key Features

• M2 grade high-speed steel construction for extended tool life in high-cycle applications
• Hardness of 60-63 HRC for wear resistance and edge retention
• Ball lock shank design for secure, tool-free retention in the die holder
• Shank diameter of 0.2030 inches with pin extension length of 0.0625 inches
• Solid blank face for custom profiling by the end user
• Part of the Jektole (HJB) series for standardized tooling interchangeability

Compatibility

Designed for use in die sets and punch holders configured for the Jektole (HJB) series ball lock punch standard. Verify holder bore diameter and retention pin configuration before installation.

Installation Notes

Installation of die punches should be performed by a qualified tool and die maker or toolroom technician. Ensure the press and die set are fully de-energized and locked out before handling or replacing punch components. Confirm that the holder bore is clean and free of debris before seating the punch to maintain alignment tolerances. Custom grinding of the blank face should be completed before mounting in a production die set.