Value Collection 723-5770 Roughing End Mill 3/4 in Cobalt

Product Description

The VALUE COLLECTION 723-5770 is a single-end roughing end mill designed for aggressive material removal in milling operations. Manufactured from M42 cobalt high-speed steel with a bright, uncoated finish, this tool delivers the heat and wear resistance required for interrupted cuts and harder workpiece materials. It features a 3/4 inch mill diameter, a 1.625 inch length of cut, and a 3.875 inch overall length. With four flutes and a right-hand cutting and flute direction, it is suited for general-purpose roughing passes on ferrous and non-ferrous metals. Machinists and toolroom professionals reach for this geometry when stock-removal rate matters more than finish quality.

This roughing end mill is used in vertical machining centers, knee mills, and manual milling operations across job shops, maintenance facilities, and production environments. The 3/4 inch shank diameter matches standard ER and end mill holders in that size range. It is not center-cutting, so it is not intended for plunge entry. Typical applications include peripheral roughing of steel, alloy steel, and cast iron where a coated carbide tool would be cost-prohibitive or where the operator prefers HSS toughness in interrupted-cut conditions.

Key Features

• M42 cobalt HSS construction for elevated heat resistance compared to standard M2 HSS
• 3/4 inch mill diameter with matching 3/4 inch shank diameter for straightforward toolholding
• 1.625 inch length of cut allows roughing of moderate-depth pockets and slots
• Four flutes with right-hand cutting and right-hand helix for conventional and climb milling
• Bright, uncoated finish compatible with standard cutting fluids and soluble oils
• Single-end design; not center-cutting — requires a pre-drilled entry point for slot work

Compatibility

Designed as an OEM-style roughing end mill for use in standard 3/4 inch end mill holders, collet chucks, and side-lock holders on vertical or horizontal milling machines.

Installation Notes

Installation is performed by a machinist or toolroom technician using a calibrated torque wrench and the appropriate end mill holder or collet. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify tool runout with a dial indicator after seating to minimize chatter and premature tool wear. Because this tool is not center-cutting, always start peripheral cuts or use a pre-drilled hole before engaging the flutes axially.