Helical Solutions 59059 Corner Radius End Mill 1/4 in 3 Flute

Product Description

The HELICAL SOLUTIONS 59059 is a solid carbide corner radius end mill designed for high-performance milling of aluminum and non-ferrous metals. It features a 1/4 inch cutting diameter, a 0.0300 inch corner radius, and three right-hand spiral flutes with a 35-degree helix angle. The Zplus PVD coating reduces built-up edge and extends tool life in aluminum and non-ferrous applications. With a 1 inch length of cut and 3 inch overall length, this single-end, centercutting tool handles both roughing and finishing passes. It belongs to the H35AL-3 series and is sized for use with high-precision toolholders.

This end mill is suited for CNC machining centers and milling machines in job shops, production facilities, and toolrooms working primarily with aluminum and non-ferrous materials. The coarse pitch flute geometry promotes chip evacuation in soft, gummy materials. Secondary workpiece materials include steel, stainless steel, cast iron, high-temperature alloys, and hard materials, making this a versatile option when the primary stock is non-ferrous. It is a single-end tool, so it is replaced rather than reground when the cutting edge is spent.

Key Features

• Zplus PVD coating optimized for aluminum and non-ferrous metal cutting
• 0.0300 inch corner radius reduces stress concentration at the cutting edge and improves surface finish
• 35-degree medium helix angle promotes smooth chip flow and reduced cutting forces
• Centercutting geometry allows plunge entry as well as peripheral milling
• Solid carbide construction provides rigidity and wear resistance over high-speed toolpaths
• Straight cylindrical shank with h6 tolerance fits high-precision collet and shrink-fit toolholders

Compatibility

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

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the control is in a safe state before changing tooling. Seat the shank fully into the collet or toolholder and torque the retention nut to the toolholder manufacturer's specification. Verify runout against the stated TIR maximum of 0.0003 inches before running production parts.