Titan Usa TC74619 Corner Radius End Mill 5/16 in 4 Flute

Product Description

The TITAN USA TC74619 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. With a 5/16 inch (0.3125 inch) mill diameter, a 0.0300 inch corner radius, and a 4-flute spiral configuration, this tool is built for both roughing and finishing passes. The AlTiN (aluminum titanium nitride) PVD coating provides thermal resistance and extended tool life when cutting hard and abrasive materials. At 4 inches overall length with a 1.6250 inch reach, it is classified as an extra-long length end mill, giving machinists access to deeper features while maintaining rigidity. The straight cylindrical shank measures 0.3125 inch in diameter and fits standard toolholders.

This end mill is engineered for use on superalloys, titanium alloys, Inconel, stainless steel, alloy steel, cast iron, and other ferrous metals. It is well-suited for aerospace, medical, and precision machining environments where tight tolerances and difficult workpiece materials are the norm. The right-hand flute direction and right-hand cutting direction make it compatible with conventional CNC machining center setups. Its normal pitch and medium helix style (30 degree) support chip evacuation across a range of feed and speed conditions. Professional machinists and toolroom technicians are the primary users of this end mill.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN PVD coating extends tool life in high-heat cutting conditions including titanium and Inconel
• 0.0300 inch corner radius reduces stress concentration at the cutting edge and improves surface finish
• Extra-long length at 4 inches OAL with 1.6250 inch reach for deep-feature access
• 4-flute spiral design supports both roughing and finishing operations in a single tool
• Right-hand cut, right-hand flute, medium helix — compatible with standard CNC toolholder setups

Compatibility

Designed for use with standard straight-bore toolholders accepting a 5/16 inch (0.3125 inch) shank diameter with h6 tolerance. Primary workpiece materials include superalloys, titanium alloy, Inconel, stainless steel, alloy steel, cast iron, and ferrous metals.

Installation Notes

Installation and use of this end mill should be performed by qualified machinists familiar with CNC milling operations. Ensure the toolholder is clean and the shank is fully seated and secured before operation. Verify spindle speed and feed rate parameters are appropriate for the workpiece material before engaging the cut. Do not exceed the rated reach length or use the tool as a boring bar or lever — side loads beyond the designed cutting envelope can cause tool breakage.