Seco 03043594 Corner Radius End Mill 3/16 in 4 Flute Altin

Product Description

The SECO 03043594 is a solid carbide corner radius end mill designed for precision milling operations requiring a controlled edge radius. With a 3/16 inch (0.1875 inch) mill diameter and a 0.023 inch corner radius, this tool produces accurate corner profiles in ferrous and hardened materials. The AlTiN coating provides thermal and wear resistance, making it well-suited for dry or semi-dry cutting conditions. The 4-flute, right-hand cutting geometry combined with a straight (0-degree helix) flute design supports controlled chip evacuation in stub-length applications. Machinists and CNC operators in production shops specify this tool for detail work requiring consistent radius accuracy and extended tool life.

This end mill is intended for use in CNC machining centers and manual milling setups where a precise corner radius is required on ferrous alloys, stainless steel, and hardened tool steels. The stub length configuration and extended reach design make it appropriate for narrow-pocket and close-tolerance work. It is a single-end tool in the SECO SN400R series, featuring a cylindrical 1/4 inch shank for standard collet or end mill holder mounting. Typical users include tool-and-die shops, aerospace component manufacturers, and precision machine shops.

Key Features

• 0.023 inch corner radius for accurate profile milling and edge breaking
• AlTiN coating for elevated thermal resistance and extended wear life in ferrous materials
• 4 right-hand flutes with straight (0-degree helix) geometry for controlled cutting action
• Micrograin solid carbide substrate for rigidity and edge retention
• Extended reach design with 0.562 inch reach length and 0.166 inch neck diameter
• Stub-length, single-end configuration suited for close-tolerance pocket work

Compatibility

Designed as a standard-shank replacement tool compatible with 1/4 inch collets, ER-style collet chucks, and end mill holders used in CNC machining centers and manual knee mills. Part of the SECO SN400R series.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Seat the cylindrical shank fully into the collet or holder to the recommended insertion depth before torquing the retention mechanism. Verify runout with a dial indicator after setup, as excessive runout will accelerate edge wear and compromise radius accuracy.