Value Collection 63323240 Drill Blank Letter U Hss

Product Description

The VALUE COLLECTION 63323240 is a Letter U drill blank ground from high speed steel and supplied in a bright, uncoated finish. Drill blanks are precision-ground cylindrical rods used as the raw stock for custom toolmaking, gage pins, punches, and special-purpose tooling. At 0.3680 inch in decimal diameter and 5 inches overall length, this blank gives machinists and tool-and-die tradespeople the material they need to grind or lap a finished tool to exact specifications. The bright finish indicates no additional heat or chemical coating has been applied, preserving the as-ground surface and dimensional integrity of the steel.

This drill blank is suited for tool rooms, machine shops, and manufacturing maintenance departments where custom tooling is fabricated in-house. It is appropriate for applications requiring a Letter U diameter, including jig boring, precision punching, and fixture tooling. Machinists working in both general metalworking and close-tolerance production environments use blanks of this type as starting stock for grinding operations.

Key Features

• Letter U size — 0.3680 inch decimal diameter for standard letter-series applications
• 5 inches overall length provides sufficient stock for most single-tool grinding operations
• High speed steel construction offers good hardness and wear resistance for toolmaking use
• Bright, uncoated finish preserves as-ground surface dimensions
• Sold individually — no minimum bundle required

Compatibility

Designed as a general-purpose Letter U drill blank compatible with standard toolroom grinding and fabrication workflows requiring a 0.3680 inch diameter HSS blank at 5 inches overall length.

Installation Notes

Drill blanks are raw stock and require grinding or lapping before use as finished tools. Machining and grinding of high speed steel should be performed by qualified tool-and-die or machine shop personnel using appropriate wheel speeds and coolant to prevent overheating and loss of hardness. Secure the blank properly in a tool-and-cutter grinder or surface grinder fixture before any material removal. Inspect the blank for surface defects before beginning grinding operations.