Dayton Lamina Kjb 31 150 Solid Mold Die Blank Punch

Product Description

The DAYTON LAMINA KJB 31 150 is a solid mold die blank punch from the Jektole (KJB) Series, designed for precision die and mold tooling applications. It features a 7/16 inch head diameter and a 5/16 inch shank diameter, with an overall length of 1.5 inches and a 1/8 inch head height. Constructed from A2 grade tool steel, this blank punch delivers consistent hardness and wear resistance under high-cycle stamping and forming conditions. It is sized and configured for machinists and toolmakers who need a reliable starting blank for custom punch profiles.

This blank punch is suited for use in progressive die sets, mold tooling, and stamping fixtures found in precision metal fabrication and industrial tooling environments. The Jektole series is a recognized standard in the tooling industry, making the KJB 31 150 a practical replacement or spare for existing KJB-series installations. It is typically installed and machined by tool and die makers or experienced machinists working in production tooling shops. The minimum machinable length of 0.56 inches and a pin extension length of 0.0625 inches support standard profiling and finish grinding operations.

Key Features

• A2 grade tool steel construction for high hardness and wear resistance in demanding punch applications
• 7/16 inch head diameter with 1/8 inch head height for secure seating in standard die sets
• 5/16 inch shank diameter compatible with standard KJB-series punch retainers
• 1.5 inch overall length provides adequate stock for custom machining and profiling
• Minimum machinable length of 0.56 inches supports standard tool room grinding operations
• Pin extension length of 0.0625 inches for precise positive location during installation

Compatibility

Designed as an OEM-style replacement and direct-fit blank punch for Jektole (KJB) Series die sets and punch retainer systems in standard progressive and solid mold tooling configurations.

Installation Notes

Installation and machining of this blank punch should be performed by a qualified tool and die maker or machinist. Before removing or replacing any punch in a die set, ensure the press is fully de-energized, locked out, and blocked per applicable safety procedures. Final profiling and grinding should be completed prior to press installation. Verify punch-to-retainer fit and stripping clearances before returning the die set to production.