Harvey Tool 856552-C3 Tapered Ball End Mill 45 Degree

Product Description

The HARVEY TOOL 856552-C3 is a solid carbide tapered ball end mill designed for precision milling in tight geometries and contoured surfaces. Built for the Runner Cutters series, it features a 45-degree taper angle per side and a 0.02-inch small end diameter, making it well suited for fine detail work in hardened materials. The AlTiN coating improves heat resistance and extends tool life in high-temperature cutting environments. With a 0.121-inch length of cut and a 0.01-inch nose radius, this tool is engineered for controlled, accurate passes in demanding machining applications. It is installed and operated by machinists and CNC programmers working in precision manufacturing.

This tapered ball end mill is used in milling operations that require tight taper angles and small cutter diameters, such as engraving, rib milling, and die or mold work. The 2-flute geometry provides chip clearance in narrow slots and confined pockets. With a 1/4-inch shank diameter and a 2-1/2-inch overall length, it mounts in standard collet or end mill holders on vertical machining centers and CNC routers handling fine detail passes in ferrous and non-ferrous materials.

Key Features

• 45-degree taper angle per side for aggressive draft angles and contoured surface access
• 0.02-inch small end diameter with 0.01-inch nose radius for fine detail milling
• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN coating for elevated heat resistance and extended tool life in dry or high-speed cutting
• 2-flute design promotes chip evacuation in narrow cuts and confined geometries
• Centercutting capable, allowing plunge entry into workpieces

Compatibility

Designed as an OEM-style tapered ball end mill in the HARVEY TOOL Runner Cutters series, compatible with standard 1/4-inch collet and end mill holder systems on CNC vertical machining centers.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and locked out before changing or seating the tool. Use a properly sized collet or end mill holder rated for the 1/4-inch shank diameter, and torque the retention mechanism according to the holder manufacturer specifications. Inspect the cutting edges and coating before each use and do not run the tool beyond its rated length of cut.