Dayton Lamina Hjb 75 275 M2 Solid Mold Die Blank Punch

Product Description

The DAYTON LAMINA HJB 75 275 M2 is a solid mold die blank punch designed for precision blanking and piercing operations in progressive die and mold tooling applications. Part of the Jektole (HJB) series, this punch features a ball lock retention system and is manufactured from M2 grade high speed steel with a hardness rating of 60-63 HRC. The 0.75-inch shank diameter and 2.75-inch overall length make it suitable for demanding production stamping environments. It is installed and serviced by tool and die makers or press room technicians maintaining progressive die assemblies.

This blank punch is used in stamping and progressive die operations, typically in metal fabrication shops, automotive component production, and precision parts manufacturing. The Jektole (HJB) series is engineered for use in standard ball lock punch retainer systems. The ball lock design allows for fast, secure punch changes without disassembly of the full die set, reducing press downtime during retooling cycles.

Key Features

• M2 grade high speed steel construction provides high wear resistance and toughness under cyclic impact loading
• Hardness of 60-63 HRC for extended tool life in production stamping
• Ball lock shank for quick, secure seating in compatible retainer systems
• Minimum machinable length of 0.5 inches allows for regrinding and extended service life
• Pin extension length of 0.0625 inches for positive ball lock engagement
• Part of the standardized Jektole (HJB) series for broad retainer compatibility

Compatibility

Designed for use with standard ball lock punch retainer systems compatible with the Jektole (HJB) series. Refer to die set documentation to confirm retainer bore and shank diameter requirements before installation.

Installation Notes

Installation and punch changes should be performed by qualified tool and die makers or experienced press room personnel. Always de-energize and lock out the press before servicing the die set. Confirm proper ball lock engagement and punch seating before resuming production. Inspect the retainer bore for wear or damage prior to installing a new punch.