Value Collection 724-6478 Roughing End Mill 5/8 in Cobalt

Product Description

The VALUE COLLECTION 724-6478 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel and finished with a TiN (titanium nitride) coating, this tool handles tough ferrous and non-ferrous materials without rapid edge breakdown. The 5/8 inch diameter cutter features 3 flutes with a right-hand cut and right-hand high-helix flute geometry, which clears chips efficiently during heavy roughing passes. With a 1.25 inch length of cut and 3.375 inch overall length, this end mill fits standard vertical milling machines and CNC machining centers. It is centercutting, allowing plunge entry without a pre-drilled hole.

This roughing end mill is suited for job shops, tool rooms, and production machining environments where fast stock removal is the priority before a finishing pass. The high-helix flute design reduces cutting forces and heat buildup, making it a practical choice for manual mills and CNC setups alike. Machinists working in steel, stainless, and similar hard alloys will find the M42 cobalt grade holds an edge longer than standard M2 HSS tools, particularly in interrupted cuts or when coolant availability is limited.

Key Features

• M42 cobalt construction for extended tool life in hard and abrasive materials
• TiN coating reduces friction and improves wear resistance at the cutting edge
• 3-flute, high-helix design promotes efficient chip evacuation during heavy cuts
• Centercutting geometry allows direct plunge entry into workpiece
• Right-hand cut and right-hand flute direction for standard spindle use
• Single-end configuration with 5/8 inch shank matching cutter diameter for direct collet or end mill holder mounting

Compatibility

Designed as a standard 5/8 inch shank roughing end mill compatible with collet chucks, end mill holders, and milling machine spindles accepting 5/8 inch straight-shank tooling.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and locked out per standard OSHA lockout/tagout procedures. Seat the shank fully in the holder and torque set screws to the holder manufacturer specification. Verify runout with a dial indicator before taking the first cut. Wear appropriate PPE including eye protection whenever the machine is in operation.