Value Collection 461-0005 M35 Cobalt Tool Bit Blank

Product Description

The VALUE COLLECTION 461-0005 is a rectangular 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 0.25 inches wide by 0.375 inches high with a 4-inch overall length, giving enough stock for grinding lathe bits, boring tools, fly cutters, and other single-point tooling. M35 cobalt steel offers improved heat and wear resistance compared to standard M2 HSS, making it well suited for harder workpiece materials and interrupted cuts where edge retention matters.

This bit blank is used in general machining, toolroom, and maintenance environments where off-the-shelf insert tooling is not practical or cost-effective. Machinists grind the blank to a custom geometry on a bench or surface grinder, then use the finished tool in a lathe, shaper, planer, or milling machine. The rectangular cross-section seats securely in standard tool holders and lantern-style post holders common in manual turning setups.

Key Features

• M35 cobalt HSS construction provides elevated red-hardness and edge retention over standard M2 HSS blanks
• Rectangular cross-section at 0.25 inches wide by 0.375 inches high seats in standard tool holders without additional shaping
• 4-inch overall length provides sufficient stock for grinding multiple tool profiles over the life of the blank
• Unground or pre-ground finish allows the machinist to establish custom rake, relief, and nose geometry as needed

Compatibility

Designed as a standard rectangular tool bit blank for use in manual lathes, shapers, and similar machine tools that accept 0.25 inches by 0.375 inches cross-section tooling.

Installation Notes

Grinding tool bit blanks is performed by qualified machinists or toolroom personnel using a bench grinder or surface grinder fitted with an appropriate aluminum oxide or CBN wheel. Always wear face and eye protection when grinding HSS stock, and dress the grinding wheel before use to maintain a true surface. Allow the blank to cool during grinding to avoid drawing the temper from the cutting edge. Secure the finished tool firmly in the tool post before any cutting operation.