Helical Solutions 59003 Corner Radius End Mill 1/8 in 3 Flute

Product Description

The HELICAL SOLUTIONS 59003 is a single-end, corner radius end mill designed for precision milling of aluminum and non-ferrous metals, with secondary capability in steel, stainless steel, cast iron, high-temperature alloys, and hard materials. It measures 1/8 inch in diameter with a 0.0150-inch corner radius, a 1/4-inch length of cut, and a 1-1/2-inch overall length. The tool is machined from solid carbide and finished with a Zplus PVD coating optimized for aluminum and non-ferrous applications. Three right-hand spiral flutes at a 35-degree helix angle support both roughing and finishing operations in a single setup.

This end mill is suited for light-duty to precision slot milling, profiling, and contouring where a controlled corner radius is required to reduce stress concentrations at part transitions. Its stub-length configuration and 1/8-inch straight-cylindrical shank make it well suited for close-tolerance work in CNC machining centers handling aluminum components, non-ferrous parts, and secondary operations on harder alloys. It is recommended for use with high-precision toolholders to take full advantage of its 0.0003-inch maximum TIR specification.

Key Features

• 0.0150-inch corner radius with a tolerance of -0.0020 to 0.0020 inches for controlled edge geometry
• Zplus PVD coating optimized for aluminum and non-ferrous metal material removal
• 3-flute, right-hand spiral configuration supports both roughing and finishing passes
• 35-degree medium helix angle promotes chip evacuation in aluminum and soft non-ferrous materials
• Centercutting design allows plunge entry without a pre-drilled pilot hole
• Solid carbide construction with h6 tolerance on mill diameter and shank diameter for consistent fit in precision toolholders

Compatibility

Designed for use with high-precision toolholders in CNC machining centers. Primary workpiece material is aluminum and non-ferrous metals; secondary workpiece materials include steel, stainless steel, cast iron, high-temperature alloys, and hard materials. Series H35AL-3.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. Seat the 1/8-inch straight-cylindrical shank fully into a high-precision toolholder and verify runout against the 0.0003-inch maximum TIR specification before cutting. Ensure the spindle is fully stopped and machine is in a safe state before changing or inspecting the tool. Do not exceed manufacturer-recommended feeds and speeds for the workpiece material being cut.