Value Collection 460-0090 M35 Cobalt Tool Bit Blank

Product Description

The VALUE COLLECTION 460-0090 is a square tool bit blank ground from M35 cobalt high-speed steel, intended for machinists and toolroom professionals who grind custom cutting tools to specific profiles. The blank measures 7/16 inches wide by 7/16 inches high with an overall length of 3-1/2 inches, providing sufficient stock for a range of single-point lathe tools, boring bars, and specialty cutters. M35 cobalt content improves red hardness and wear resistance compared to standard M2 HSS, making it a reliable choice for harder workpiece materials and interrupted cuts. The part weighs approximately 0.25 pounds.

This tool bit blank is suited for general-purpose toolroom and production machining environments. It is used when a standard off-the-shelf cutting tool geometry does not meet the job requirement and a custom-ground profile is needed. Typical applications include grinding single-point turning tools for manual lathes, threading tools, and form tools in both job shop and maintenance machining settings. The square cross-section suits standard tool holders and lantern-style post holders commonly found on engine lathes.

Key Features

• M35 cobalt high-speed steel construction for improved red hardness and wear resistance
• Square cross-section at 7/16 inches x 7/16 inches fits standard lathe tool holders
• 3-1/2 inch overall length provides adequate stock for grinding and re-grinding
• Sold individually, allowing single-piece procurement for toolroom needs
• Unground blank format gives the user full control over final cutting geometry

Compatibility

Designed as a general-purpose tool bit blank for use in standard square-shank tool holders and lantern post holders that accept 7/16 inch square stock.

Installation Notes

Tool bit blanks require grinding to a finished cutting geometry before use; this work is typically performed by a machinist using a bench or pedestal grinder with an appropriate wheel for high-speed steel. Eye protection and proper wheel guards must be in place during grinding operations. Inspect the blank for cracks or surface defects before grinding. Follow applicable shop safety procedures when handling freshly ground cutting edges.