Value Collection 461-0130 M35 Cobalt Tool Bit Blank

Product Description

The VALUE COLLECTION 461-0130 is a rectangle ground tool bit blank made from M35 cobalt high-speed steel. It measures 0.5 inches wide, 1.25 inches high, and 7 inches in overall length. This blank is designed for machinists and toolroom technicians who grind their own custom cutting tool profiles. The ground finish provides a consistent surface that makes it easier to achieve accurate geometry when shaping the cutting edge on a bench or surface grinder. M35 cobalt steel offers greater heat resistance and wear resistance than standard M2 high-speed steel, making it a practical choice for cutting harder workpiece materials.

This tool bit blank is suited for use in manual and CNC lathes, shapers, planers, and boring mills where a custom-ground single-point cutting tool is required. It is a common stock item in job shops, toolrooms, and maintenance machining environments. Machinists select blanks like this when standard insert tooling cannot reach the required geometry or when a specific form tool must be ground from scratch. The 7-inch length provides enough material to regrind the cutting end multiple times over the tool's service life.

Key Features

• M35 cobalt high-speed steel construction for improved hardness and heat resistance compared to standard HSS
• Ground finish on all faces for dimensional consistency and easier bench grinding
• Rectangle cross-section profile for straightforward clamping in standard tool posts and holders
• 7-inch overall length allows multiple regrinds over the life of the blank
• Weighs approximately 0.5 pounds for easy handling at the grinder

Compatibility

Designed as a general-purpose tool bit blank for use in standard square-shank tool posts and holders that accept a 0.5-inch by 1.25-inch rectangular shank profile.

Installation Notes

Tool bit blanks are ground to final geometry by a qualified machinist using a bench grinder or surface grinder with an appropriate wheel for high-speed steel. Ensure the grinding wheel is rated for cobalt HSS before shaping. Secure the blank firmly in a tool holder or vise before machining and inspect the ground edge for cracks or chips before mounting in the machine tool. Follow shop safety protocols for eye protection and coolant use during grinding operations.