Value Collection 460-2260 Tool Bit Blank M35 Cobalt 5/16in

Product Description

The VALUE COLLECTION 460-2260 is a square tool bit blank ground from M35 cobalt high-speed steel, intended for machinists and tool-and-die professionals who grind their own cutting tools to custom profiles. The blank measures 5/16 inches wide by 5/16 inches high with an overall length of 8 inches, providing substantial stock for grinding single-point lathe tools, boring bars, fly cutters, or other shop-fabricated tooling. M35 cobalt-grade steel offers elevated heat resistance and hardness retention compared to standard M2 high-speed steel, making it well suited for cutting harder workpiece materials or higher-speed applications where standard HSS blanks wear prematurely.

This blank is a standard choice for job shops, toolrooms, and maintenance machining environments where cutting geometry must be customized to the application. The 8-inch length allows multiple grinds from a single blank over its service life. Typical users include manual lathe operators, CNC setup machinists needing custom form tools, and toolmakers producing specialty profiles not available in cataloged insert tooling.

Key Features

• M35 cobalt high-speed steel for improved hot hardness and wear resistance over standard M2 HSS
• Square cross-section — 5/16 inches wide by 5/16 inches high — compatible with common toolholder and lantern post slots of the same size
• 8-inch overall length provides extended stock for multiple regrinds
• Unground blank stock allows full custom geometry to be applied at the point of use
• Weighs approximately 0.017 pounds, lightweight and easy to handle at the bench grinder

Compatibility

Designed as an OEM-style replacement or shop-stock blank for use in toolholders and lantern tool posts accepting 5/16-inch square shank tooling on manual and CNC lathes.

Installation Notes

Tool bit blanks are ground to final geometry by a qualified machinist using a bench or pedestal grinder equipped with an appropriate wheel for high-speed steel. Always wear approved eye protection and use a properly dressed grinding wheel rated for HSS or cobalt-grade materials. Secure the blank in a grinding fixture or tool rest to maintain consistent relief and rake angles. Allow the blank to cool during grinding to prevent softening the cutting edge through overheating.