Value Collection 724-0191 Roughing End Mill 3/4 in Cobalt

Product Description

The VALUE COLLECTION 724-0191 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel with a bright, uncoated finish, it delivers the hardness and heat resistance needed for cutting tough ferrous and non-ferrous metals. The 3/4 inch diameter tool features 4 right-hand flutes with a 2.5 inch length of cut and an overall length of 4.625 inches. The serrated cutting edges characteristic of roughing geometry break chips into smaller segments, reducing cutting forces and allowing faster feed rates compared to standard end mills. Machinists and tool-and-die professionals rely on this geometry for roughing passes before finishing operations.

This end mill is suited for horizontal and vertical milling machines, CNC machining centers, and manual knee mills performing roughing passes in steel, stainless, cast iron, and similar materials. The 3/4 inch straight shank matches standard ER collet chucks, end mill holders, and Weldon-style side-lock holders of the same bore size. It is a single-end tool, meaning once the cutting end is worn, the tool is replaced rather than flipped. Typical use cases include slotting, peripheral roughing, and pocketing where stock removal rate is the priority over surface finish.

Key Features

• M42 cobalt HSS construction provides elevated red hardness for cutting harder workpiece materials
• 4-flute roughing geometry breaks chips and reduces cutting forces at higher feed rates
• Right-hand cut and right-hand flute direction — standard for conventional and climb milling setups
• Center-cutting design allows plunge entry directly into the workpiece
• Bright, uncoated finish — compatible with standard cutting oils and flood coolants
• 3/4 inch shank diameter matches the 3/4 inch mill diameter for consistent runout in standard toolholders

Compatibility

Designed as a direct-fit roughing end mill for 3/4 inch bore end mill holders, ER collets, and Weldon-style toolholders used on vertical and horizontal milling machines and CNC machining centers.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional familiar with rotating cutting tool safety. Ensure the machine spindle is fully stopped and the tool holder is clean and free of chips before seating the shank. Torque the setscrew or collet nut to the toolholder specification and verify runout with a dial indicator before the first cut. Always use appropriate personal protective equipment and ensure guards are in place before operating.