Description

The SECO 03043611 is a solid carbide corner radius end mill designed for precision milling operations requiring a controlled edge radius. Built to SN400R series specifications, this single-end tool features a 3/8-inch mill diameter with a 0.0432-inch corner radius and four straight flutes oriented for right-hand cutting. The AlTiN coating provides thermal resistance and extended tool life in ferrous and hard materials. With a 0-degree helix angle, it is optimized for rigid setups where axial cutting forces must be minimized. This tool is installed by machinists and CNC operators working in job shops, tool rooms, and production environments.

This end mill is suited for light profiling, slotting, and finishing passes in metalworking applications where a small, consistent corner radius is required on part geometry. The extended reach of 1.875 inches and a neck diameter of 0.329 inches allow access to deeper features without sacrificing rigidity. The short length-of-cut design, at 0.018 inches, concentrates cutting action at the tip for controlled, repeatable results. Typical applications include die and mold work, aerospace component finishing, and precision part machining in steel, stainless, and hardened alloys.

Key Features

Solid micrograin carbide construction for hardness and wear resistance in demanding materials
AlTiN coating for high-temperature performance and reduced tool wear
0.0432-inch corner radius for consistent edge geometry on finished surfaces
0-degree helix angle with straight flutes for rigid, low-vibration cuts
Extended reach of 1.875 inches with a reduced neck diameter of 0.329 inches for deep-feature access
Single-end, right-hand cutting with cylindrical shank for standard collet or chuck mounting

Compatibility

Designed as an OEM-style solid carbide corner radius end mill for use in standard 3/8-inch collets, end mill holders, or hydraulic chucks compatible with cylindrical-shank tooling on CNC machining centers and manual mills.

Installation Notes

This tool is installed by qualified machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Seat the cylindrical shank fully into the collet or holder and torque the retention hardware to the machine or toolholder specification. Verify runout with a dial indicator before beginning production cuts, as excessive runout will reduce tool life and compromise corner radius accuracy.