Value Collection 724-3128 Roughing End Mill 1/2 in Cobalt

Product Description

The VALUE COLLECTION 724-3128 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel with a TiN coating, it handles tough ferrous and non-ferrous metals where standard HSS tooling would struggle. The 1/2-inch diameter cutter features 4 flutes in a right-hand cutting and right-hand flute direction, with a 3-inch length of cut and a 5-inch overall length. Machinists and tool-and-die professionals use this style of end mill for hogging operations before a finishing pass, reducing cycle time on manual mills and CNC machining centers alike.

This roughing end mill suits general-purpose milling in job shop, maintenance, and production environments. The 1/2-inch shank diameter fits standard ER and R8 collet systems as well as side-lock holders common on vertical knee mills and CNC machining centers. The non-centercutting geometry means it is intended for side milling and peripheral passes rather than plunge cutting. It is appropriate for use in steels, alloy steels, stainless, and cast iron where the TiN coating and M42 substrate provide added heat and wear resistance.

Key Features

• M42 cobalt HSS substrate for improved hardness and heat resistance over standard M2 HSS
• TiN coating extends tool life and reduces friction in ferrous materials
• 4-flute, right-hand cut geometry optimized for roughing passes and stock removal
• 3-inch length of cut provides reach for deeper pockets and slots
• 1/2-inch shank diameter matches cutter diameter for rigid, balanced setup
• Non-centercutting design intended for peripheral and side milling applications

Compatibility

Designed as an OEM-style replacement-grade roughing end mill compatible with standard 1/2-inch collet and end mill holder systems used on vertical milling machines and CNC machining centers.

Installation Notes

Installation is performed by machinists using an appropriate collet chuck, end mill holder, or side-lock holder rated for the 1/2-inch shank diameter. Ensure the machine spindle is fully stopped and the power is locked out before changing tooling. Confirm runout with a dial indicator after seating the tool in the holder to minimize premature wear. Non-centercutting end mills must be ramped or helically interpolated into the workpiece rather than plunged axially.