Dayton Lamina Hjb 125 475 M2 Solid Mold Die Blank Punch

Product Description

The DAYTON LAMINA HJB 125 475 M2 is a solid mold die blank punch engineered for precision tooling applications in stamping and die-making operations. Part of the Jektole (HJB) Series, this punch features a 1.25-inch shank diameter and a ball lock retention system for secure, repeatable seating in the punch holder. Manufactured from M2 grade high-speed steel, it delivers a hardness rating of 60-63 HRC, providing the wear resistance and toughness required in high-cycle die work. With an overall length of 4.75 inches and a minimum machinable length of 0.5 inches, this blank punch is designed to be ground to the required profile by the toolmaker or die shop technician.

This punch is suited for use in mold and die stamping setups where a blank, unmachined tip profile is required before final grinding. It is commonly installed in progressive dies, compound dies, and single-station die sets used in sheet metal fabrication shops and tool and die rooms. The ball lock design allows for quick changeouts without the need for set screws or additional retaining hardware, making it practical in production environments where downtime must be minimized.

Key Features

• M2 grade high-speed steel construction for high hardness and wear resistance
• Hardness rating of 60-63 HRC for durability in high-cycle stamping operations
• Ball lock retention system for secure, tool-free punch seating
• 1.25-inch shank diameter with 4.75-inch overall length
• Blank tip design allows the toolmaker to grind the required punch profile
• Part of the Jektole (HJB) Series for standardized punch holder compatibility

Compatibility

Designed for use in Jektole (HJB) Series punch holders and die sets that accept a 1.25-inch shank diameter ball lock punch. Confirm holder series and retention style before installation.

Installation Notes

Installation is performed by tool and die makers or qualified stamping technicians. Ensure the press is fully de-energized and the ram is blocked before removing or installing any punch components. The blank tip must be profile-ground by the end user prior to use in production; do not run an unfinished punch against a die button. Inspect the ball lock mechanism and punch holder bore for wear or contamination before seating the punch.