Value Collection 461-0060 M35 Cobalt Tool Bit Blank

Product Description

The VALUE COLLECTION 461-0060 is a rectangle-ground tool bit blank machined from M35 cobalt high-speed steel. It measures 5/16 inches wide, 1/2 inches high, and 6 inches in overall length. M35 cobalt steel offers elevated heat resistance and hardness retention compared to standard M2 HSS, making this blank well-suited for grinding custom single-point lathe tools, form tools, and threading tools. Machinists and tool-and-die professionals grind these blanks to their required geometry on a bench or surface grinder. The ground finish ensures consistent dimensional accuracy and a flat reference surface before profiling.

This tool bit blank is used in manual and CNC lathes, boring mills, and similar metal-cutting applications where a custom-ground profile is required. It is appropriate for cutting ferrous metals, stainless steel, and other tough alloys where the cobalt content in M35 provides an advantage over conventional HSS at elevated cutting temperatures. Typical users include machinists, toolmakers, and maintenance professionals working in job shops, production environments, and maintenance repair operations.

Key Features

• M35 cobalt HSS construction for improved heat resistance and hardness retention during heavy cuts
• Rectangle ground profile provides consistent flat reference surfaces for accurate tool grinding
• 5/16 inches wide by 1/2 inches high cross-section fits standard lathe tool holders for that size range
• 6 inch overall length gives ample stock for regrinding multiple times over the tool life
• Ground finish reduces setup time on the bench grinder compared to unground blanks

Compatibility

Designed as a general-purpose HSS tool bit blank for use in standard lathe tool holders and grinding fixtures that accept a 5/16 inches by 1/2 inches rectangular shank profile.

Installation Notes

Grinding tool bit blanks should be performed by a qualified machinist using a dedicated bench or surface grinder fitted with an appropriate aluminum oxide or CBN wheel for HSS. Wear eye protection and follow ANSI B11 safety standards during grinding operations. Inspect the ground edge for cracks or thermal discoloration before mounting in the tool holder. Secure the bit firmly in the tool post or holder before initiating any cutting operation.