Value Collection 63323299 Drill Blank Letter Z Hss

Product Description

The VALUE COLLECTION 63323299 is a Letter Z drill blank made from high speed steel with a bright, uncoated finish. Drill blanks are precision-ground cylindrical rods used as raw stock for fabricating custom drill bits, punches, gauges, and other tooling. This blank measures 0.4130 inches in decimal diameter and 5.25 inches in overall length, giving machinists and toolmakers sufficient stock to grind or shape to a required geometry. The bright finish indicates no surface coating has been applied, which allows for direct inspection of the base material and simplifies custom grinding setups.

This drill blank is suited for use in machine shops, tool and die operations, and maintenance environments where standard drill geometries do not meet the required specification. Toolmakers use blanks like this to produce one-off cutting tools, locating pins, and wear-resistant components. It is appropriate for both production tooling and repair applications where a Letter Z diameter is needed.

Key Features

• Letter Z size with a decimal equivalent of 0.4130 inches for precise diameter reference
• 5.25-inch overall length provides adequate stock for grinding or machining to final form
• High speed steel construction offers good hardness and wear resistance for cutting tool applications
• Bright, uncoated finish allows direct inspection of material and simplifies surface preparation
• Sold individually, suitable for low-quantity tooling and repair jobs

Compatibility

Designed as a general-purpose Letter Z drill blank for use in tool grinding, custom drill fabrication, and similar machining applications where a 0.4130-inch diameter HSS blank is required.

Installation Notes

Drill blanks require grinding by a qualified toolmaker or machinist to produce a finished cutting tool. Secure the blank properly in a tool and cutter grinder or surface grinder before shaping. Ensure grinding wheels are rated for high speed steel and that appropriate coolant or airflow is used to prevent overheating the material, which can reduce hardness. Personal protective equipment including eye protection is required during all grinding operations.