Seco 63007906 Tool Bit Blank WKE45 Cobalt Rectangle

Product Description

The SECO 63007906 is a rectangular cobalt tool bit blank designed for custom grinding and toolroom applications. Manufactured from WKE45 cobalt high-speed steel, this blank offers increased heat and wear resistance compared to standard M2 HSS, making it well suited for interrupted cuts and tough workpiece materials. Measuring 5/8 inches wide by 7/8 inches high with a 6-inch overall length, the blank provides ample stock for grinding single-point turning tools, boring tools, threading tools, and specialty form tools to exact geometry. Machinists and toolroom technicians select this grade and size when a precision-ground blank is required as the starting point for a custom cutting tool.

This tool bit blank is used in machine shop and toolroom environments where operators grind their own cutting tools to match specific lathe, boring mill, or shaper operations. The WKE45 cobalt grade is appropriate for applications involving stainless steels, heat-resistant alloys, and other difficult-to-machine materials where standard HSS loses hardness at elevated cutting temperatures. The rectangular cross-section and 6-inch length accommodate a wide range of tool holder styles and custom grinding requirements in both production and maintenance machining settings.

Key Features

• WKE45 cobalt high-speed steel provides elevated hot hardness and wear resistance over standard HSS grades
• Rectangular cross-section at 5/8 inches wide by 7/8 inches high for consistent seating in standard tool holders
• 6-inch overall length gives sufficient stock for grinding and regrinding multiple tool profiles
• Unground blank format allows the toolroom technician to grind exact rake, relief, and nose geometry to specification
• Sold as a single piece with no minimum order beyond one unit

Compatibility

Designed as a toolroom-ground replacement or custom cutting tool starting blank for lathes, boring mills, shapers, and similar machine tools that accept rectangular tool bit holders sized for 5/8 inch by 7/8 inch cross-section stock.

Installation Notes

Tool bit blanks are ground to final geometry by a qualified machinist or toolroom technician using a bench or surface grinder equipped with appropriate grinding wheels for high-speed steel. Ensure the machine is properly guarded and eye protection is worn during all grinding operations. Secure the blank firmly in a grinding fixture or tool rest to maintain consistent angles. Always allow the blank to cool during grinding to prevent drawing the temper of the cobalt steel.