Cleveland C39040 Ball End Mill 1 in 2 Flute Hss Ticn

Product Description

The CLEVELAND C39040 is a single-end ball end mill designed for finishing operations in ferrous materials including steel and cast iron. Built from high speed steel and coated with titanium carbonitride (TiCN), this tool offers improved wear resistance and surface hardness compared to uncoated HSS tooling. It features a 1 inch cutting diameter, a 2.25 inch length of cut, and a 30-degree right-hand helix that promotes smooth chip evacuation during profiling and contouring passes. With a 1 inch shank diameter and a 4.5 inch overall length, it mounts directly in standard end mill holders and collet chucks used in CNC machining centers and manual knee mills.

This end mill is suited for finishing passes on contoured surfaces, pocketing, and 3D profiling where a spherical cutting edge is required. The two-flute configuration provides adequate chip clearance when working in softer steel grades, and the TiCN coating extends tool life when cutting cast iron and low-alloy steels. It is part of the Cleveland HG-2B series, which targets high-geometry finishing applications. Machinists and tool-and-die professionals are the primary users of this tool class.

Key Features

• TiCN coating increases surface hardness and reduces built-up edge in steel and cast iron
• 30-degree right-hand spiral helix promotes chip evacuation during finishing passes
• Two-flute geometry provides clearance for chip flow in moderate-depth cuts
• Single-end design with 1 inch shank diameter for rigid clamping in standard end mill holders
• Regular length profile at 4.5 inch OAL limits deflection during contouring operations
• Part of the HG-2B series, optimized for finishing material removal on ferrous workpieces

Compatibility

Designed for use in standard 1 inch end mill holders, collet chucks, and side-lock holders on CNC machining centers and manual vertical mills. Primary workpiece materials are steel and cast iron as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank to the full depth recommended by the holder manufacturer to minimize runout and prevent pullout during cutting. Follow the machine tool manufacturer guidelines and applicable shop standards for speeds, feeds, and coolant use appropriate to the workpiece material.