Value Collection 01100254 Drill Blank 25/64 in Hss

Product Description

The VALUE COLLECTION 01100254 is a high speed steel drill blank ground to a 25/64 inch (0.3906 inch) diameter with a 5-1/8 inch overall length. Drill blanks are unfluted, precision-ground rods used as the starting stock for custom tooling fabrication, gage pins, punch and die work, and specialized cutting tools. This blank ships with a bright, uncoated finish, which preserves the base high speed steel surface for applications where a specific coating will be applied by the end user or where bare HSS performance is sufficient for the task at hand. Machinists, tool and die makers, and toolroom technicians are the primary users of this type of stock.

This drill blank is suited for toolroom environments where custom tooling is ground from raw stock. Typical applications include fabricating single-point tools, custom reamers, pilots, and gauging fixtures. The bright finish makes it well-suited for subsequent grinding, lapping, or coating operations. It is equally useful as a precision locating pin or alignment fixture component in low-volume production and prototype machining setups where off-the-shelf tooling does not match the required diameter exactly.

Key Features

• Precision-ground to 25/64 inch (0.3906 inch) diameter for consistent stock removal in downstream operations
• 5-1/8 inch overall length provides adequate stock for most toolroom fabrication tasks
• High speed steel construction offers good hardness and wear resistance for cutting tool applications
• Bright, uncoated finish is ready for secondary grinding, coating, or use as-ground
• Sold individually, suitable for single-piece toolroom and prototype needs

Compatibility

Designed as a general-purpose drill blank for toolroom use wherever a 25/64 inch diameter, 5-1/8 inch high speed steel blank is required for custom tool fabrication or precision fixture work.

Installation Notes

Drill blanks are typically handled and ground by machinists or tool and die makers using surface grinders, cylindrical grinders, or bench grinders. Secure workholding and proper wheel selection are required when grinding HSS stock to final geometry. Eye protection and appropriate chip and grinding dust controls should be in place during all grinding operations. Always inspect the blank for surface defects before beginning secondary operations.