Harvey Tool 867804-C3 Tapered Ball End Mill Altin 2 Flute

Product Description

The HARVEY TOOL 867804-C3 is a solid carbide tapered ball end mill designed for precision contouring, 3D profiling, and cavity milling in tight geometries. It features a 22.5-degree taper angle per side, a 0.124-inch small end diameter, and a ball nose end shape with a 0.0625-inch nose radius. The 2-flute design promotes chip evacuation in demanding cuts. An AlTiN coating provides thermal resistance and extended tool life in ferrous and hardened materials. This cutter is part of the Harvey Tool Runner Cutters series and is intended for use by machinists and toolroom professionals on CNC milling equipment.

This tapered end mill is suited for mold and die work, aerospace profiling, and precision part finishing where draft angles and blended surfaces are required. The 22.5-degree taper per side allows access to angled walls and tapered pockets that straight-flute tools cannot reach. With a 0.277-inch length of cut and a 0.3125-inch shank diameter, it fits standard ER or side-lock collet toolholders on vertical or 5-axis CNC machining centers. It is typically used in small-to-medium batch production runs requiring tight surface finish tolerances.

Key Features

• 22.5-degree taper angle per side for angled wall and drafted pocket machining
• Ball end geometry with 0.0625-inch nose radius for smooth 3D surface finishing
• Solid carbide construction for rigidity and dimensional stability
• AlTiN coating for high-temperature resistance and extended tool life in ferrous materials
• 12-degree helix angle optimized for the Runner Cutters series geometry
• 2-flute configuration supports efficient chip removal in confined cuts

Compatibility

Designed as an OEM-style replacement and standard catalog offering in the Harvey Tool Runner Cutters series for use in CNC milling applications requiring tapered ball end geometry with a 0.3125-inch shank.

Installation Notes

This tool is installed by machinists in ER collet chucks or precision side-lock holders sized for a 0.3125-inch shank. Confirm runout at the collet before engaging the cut, as excessive runout will accelerate wear on a 2-flute carbide tool. Program feeds and speeds per the manufacturer recommendations for AlTiN-coated carbide at the material hardness being machined. Inspect the cutting edges and nose radius under magnification before each use to detect chipping that could compromise surface finish.