Value Collection 724-0257 Roughing End Mill 1 in 5 Flute Cobalt

Product Description

The VALUE COLLECTION 724-0257 is a single-end roughing end mill designed for aggressive material removal in milling operations. Built from M42 cobalt high-speed steel with a bright, uncoated finish, it delivers strong heat and wear resistance during heavy cuts. The 1-inch diameter, 5-flute geometry produces a coarse, interrupted cutting action that breaks chips efficiently and reduces chatter. With a 1.625-inch length of cut and a 1-inch straight shank, this tool is suited for use in standard end mill holders and collet chucks found on vertical and horizontal milling machines. Machinists and tool-and-die professionals install and operate this end mill for roughing passes on ferrous and non-ferrous materials.

This roughing end mill is used in general machining environments for roughing passes prior to finish milling. Its right-hand cutting and right-hand flute direction make it compatible with conventional right-hand spindle setups. The centercutting design allows plunge entry as well as peripheral cutting. It is appropriate for job shops, production machining, and maintenance repair operations where a durable cobalt tool is preferred over carbide for interrupted cuts or variable setups.

Key Features

• M42 cobalt construction provides elevated red hardness and wear resistance versus standard M2 HSS
• 5-flute roughing profile breaks chips and reduces cutting forces during heavy stock removal
• Centercutting geometry allows direct plunge entry without a pilot hole
• Right-hand cut and right-hand helix for use with standard spindle rotation
• Bright, uncoated finish suitable for a wide range of materials without coating compatibility concerns
• 1-inch diameter shank matches tool holder availability on most knee mills and machining centers

Compatibility

Designed as a direct-fit roughing end mill for standard 1-inch end mill holders, collet chucks, and Weldon-style holders used in vertical and horizontal milling machine setups.

Installation Notes

Installation should be performed by a qualified machinist following safe tooling practices. Power down and lock out the machine spindle before installing or removing any cutting tool. Ensure the shank is seated to the full recommended depth in the holder and that set screws or collet nuts are properly tightened before operation. Do not exceed the tool manufacturer and machine tool builder recommendations for feed rate, depth of cut, and spindle speed for the workpiece material.