Kennametal 1925133 Corner Radius End Mill 3/8in 4 Flute Altin

Product Description

The KENNAMETAL 1925133 is a solid carbide corner radius end mill designed for high-performance milling in demanding metal-cutting applications. It features a 3/8-inch cutting diameter with a 0.03-inch corner radius that reduces stress concentration at the cutting edge and extends tool life in interrupted and continuous cuts. The 4-flute, right-hand cutting geometry paired with an AlTiN coating delivers thermal resistance and wear protection at elevated speeds. The 45-degree helix angle promotes smooth chip evacuation and reduces chatter. This tool is installed by machinists and CNC operators in job shops, aerospace, and general manufacturing environments.

This end mill is suited for milling alloy steels, hardened steels, stainless steels, and similar materials where heat generation is a concern. The AlTiN coating extends surface life in high-temperature cutting conditions without requiring additional lubrication in many dry-machining setups. The HPRDM series designation identifies it as a high-performance radial depth-of-cut design. It is a single-end, centercutting tool, allowing plunge entry as well as conventional and climb milling passes. Typical applications include slotting, profiling, and contouring on vertical and horizontal machining centers.

Key Features

• 3/8-inch cutting diameter with 0.03-inch corner radius for edge strength and reduced chipping
• AlTiN coating for thermal and oxidation resistance in high-speed dry or near-dry cutting
• 4-flute right-hand geometry with 45-degree helix for efficient chip evacuation
• Centercutting design allows direct plunge entry into workpiece material
• Solid carbide construction in material grade C2 for rigidity and dimensional stability
• Single-end configuration with 3/8-inch length of cut and 5-inch overall length

Compatibility

Designed for use in standard 1/2-inch collet or end mill holders on CNC machining centers and manual knee mills. Part of the KENNAMETAL HPRDM series for high-performance milling applications.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the 1/2-inch shank in a properly sized, clean collet or hydraulic end mill holder, ensuring full contact along the shank length. Verify runout with a dial indicator before beginning a production run. Follow the machine tool manufacturer and cutting tool manufacturer feed-and-speed recommendations for the specific workpiece material.