Cleveland C61871 4-Flute Carbide Square Single End GP End Mill

Cleveland C61871 Carbide End Mill

The Cleveland C61871 is a four-flute carbide square end mill designed for general-purpose milling tasks. It suits machinists and maintenance teams needing a rigid, uncoated tool for slotting, profiling and plunge cuts in a range of ferrous and non-ferrous materials. The straight shank fits standard 3/8 inch tool holders on manual or CNC knee mills.

Uncoated Carbide Limits

An uncoated carbide substrate relies on its inherent hardness and heat resistance rather than a surface coating. This restricts maximum cutting speeds and feed rates compared with coated alternatives, especially in abrasive or high-temperature alloys where built-up edge and crater wear accelerate. The tool lacks internal coolant passages, so external flood or mist cooling must manage chip evacuation and thermal load during deep pockets or full-width slots.

0.375 Inch Diameter Decides Fit

The 3/8 inch cutting diameter and matching shank diameter determine whether this mill matches the feature size and tool holder capacity of the job. If the programmed radius, slot width or holder bore differs, the cutter cannot be used without changing the setup or selecting a different diameter.