Cleveland C39012 Ball End Mill 0.25in 2 Flute Hss Tin

Product Description

The CLEVELAND C39012 is a single-end ball end mill designed for finishing operations in ferrous and cast iron workpieces. Built from High Speed Steel (HSS) with a Titanium Nitride (TiN) coating, it delivers improved surface hardness and wear resistance compared to uncoated HSS tooling. The 0.25-inch cutting diameter, 0.625-inch length of cut, and 30-degree right-hand spiral flute geometry make it well suited for profiling, contouring, and slot milling in moderate-hardness materials. It runs in a right-hand cutting direction and is part of the HG-2B series, which is oriented toward general-purpose finishing work.

This end mill fits standard milling machine and CNC machining center setups where a 3/8-inch shank is accepted. Its 2-7/16-inch overall length and regular-length classification make it a practical choice for general shop use on vertical mills, knee mills, and CNC machining centers handling cast iron and steel components. The two-flute configuration provides adequate chip clearance for slotting and profiling passes in these materials. It is a single-package item with a minimum order quantity of one.

Key Features

• TiN coating increases surface hardness and extends tool life over uncoated HSS
• 30-degree right-hand spiral flute geometry supports smooth chip evacuation during finishing cuts
• Two-flute design provides chip clearance suitable for slotting and profiling in steel and cast iron
• Single-end configuration with a 3/8-inch shank fits standard ER and straight-bore toolholders
• HG-2B series regular-length classification for general-purpose milling applications

Compatibility

Designed for use in milling machines and CNC machining centers accepting a 3/8-inch straight shank. Primary workpiece materials per manufacturer specification are cast iron and steel.

Installation Notes

Installation is performed by qualified machinists or toolroom personnel. The shank must be fully seated and properly torqued in the toolholder collet or chuck before operation — consult the toolholder manufacturer's clamping specifications. Confirm spindle speed and feed rate are set per material and coating recommendations before engaging the cut. Never run a TiN-coated HSS end mill beyond its rated surface footage, as overheating degrades the coating and the underlying substrate.