Helical Solutions 46406 Corner Radius End Mill 1/2 in 3 Flute

Product Description

The HELICAL SOLUTIONS 46406 is a single-end, corner radius end mill engineered for high-performance milling in aluminum, non-ferrous metals, and secondary materials including steel, stainless steel, cast iron, high-temperature alloys, and hard materials. Built from solid carbide with a Zplus PVD coating, it carries a 1/2-inch mill diameter, a 0.0600-inch corner radius, and a 5/8-inch length of cut. The extra-long 6-inch overall length and 4.25-inch reach make it well suited for deep-cavity and extended-reach applications where standard-length tools cannot access the workpiece.

This end mill belongs to the H40ALV-RN-3 series and is designed for roughing and finishing operations. Its variable pitch, high-helix geometry, and right-hand flute direction support aggressive material removal rates while reducing chatter. The centercutting capability allows plunge entry, and the straight-cylindrical shank is compatible with high-precision toolholders. Typical applications include aerospace component machining, mold work, and general CNC milling where dimensional accuracy and surface finish are both priorities.

Key Features

• Solid carbide construction with Zplus PVD coating for extended tool life in aluminum and non-ferrous applications
• 3-flute, variable-pitch geometry reduces harmonic vibration during high-speed cuts
• 0.0600-inch corner radius with a tight tolerance of -0.0020 to 0.0020 inches
• Extra-long 6-inch OAL with 4.25-inch reach for deep-cavity and extended-reach setups
• Centercutting design allows direct plunge entry without a pre-drilled pilot hole
• Maximum TIR of 0.0003 inches supports high-precision toolholder use
• Right-hand cutting direction; compatible with both roughing and finishing passes

Compatibility

Designed for use with high-precision toolholders. Primary workpiece material is aluminum and non-ferrous metal (Material Code N); secondary workpiece materials include steel, stainless steel, cast iron, high-temperature alloy, and hard material (Material Codes P, M, S, H). Part of the H40ALV-RN-3 series.

Installation Notes

Installation is performed by a qualified CNC machinist or toolroom technician. Before mounting, ensure the machine spindle is fully stopped and all motion is locked out. Seat the straight-cylindrical shank fully into a high-precision toolholder and secure according to the toolholder manufacturer's clamping procedure. Verify runout with a dial indicator before beginning the cut, as TIR directly affects surface finish and tool life at high speeds.