Value Collection 723-5781 Roughing End Mill 7/8 in 5 Flute Cobalt

Product Description

The VALUE COLLECTION 723-5781 is a single-end cobalt roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel, this tool handles tough ferrous and non-ferrous materials with a 7/8 inch (0.875 inch) cutting diameter and a 5-flute geometry that distributes chip load evenly across the cutting edge. The bright, uncoated finish suits general-purpose roughing passes where coating adhesion is not a requirement. A 3/4 inch shank diameter provides solid tool holding in standard collets and end mill holders. This tool is installed and operated by machinists and tool-room professionals in manual and CNC machining environments.

This roughing end mill is suited for roughing operations in vertical mills, knee mills, and CNC machining centers. The 5-flute configuration increases feed rate capability compared to standard 4-flute designs, making it effective for hogging stock on steel, stainless, cast iron, and similar materials. The right-hand cut and right-hand flute direction are standard for conventional and climb milling on most machine setups. It is not center-cutting, so it is not intended for plunge entry without a pre-drilled hole or ramping strategy.

Key Features

• 7/8 inch (0.875 inch) cutting diameter with 1.875 inch length of cut for deep roughing passes
• M42 cobalt high-speed steel construction for improved heat and wear resistance over standard HSS
• 5-flute design increases material removal rate and surface contact per revolution
• 3/4 inch shank diameter fits standard end mill holders and collet chucks
• Right-hand cut, right-hand flute — compatible with standard spindle rotation on most mill types
• Bright, uncoated finish — no coating interaction concerns with cutting fluids or certain materials

Compatibility

Designed as an OEM-style replacement or direct drop-in for single-end roughing end mill applications requiring a 7/8 inch diameter, 3/4 inch shank, 5-flute cobalt tool in standard end mill holders and collet systems.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Secure the shank fully in the tool holder to the manufacturer-recommended engagement depth before tightening. Because this end mill is not center-cutting, avoid direct plunge cuts — use a ramping or helical entry path or pre-drill the entry point. Inspect the cutting edges and shank for damage before each use, and ensure spindle speed and feed rate are set per the material being machined.