Helical Solutions 59426 Corner Radius End Mill 1/2in 7 Flute

Product Description

The HELICAL SOLUTIONS 59426 is a 7-flute, solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. It features a 0.5000-inch mill diameter, a 0.0300-inch corner radius, and a 0.6250-inch length of cut. The APLUS PVD coating provides enhanced wear resistance and thermal stability, making this tool well suited for work in steel, stainless steel, cast iron, superalloys, and titanium. Variable pitch geometry reduces chatter and improves surface finish at aggressive feed rates. This is a single-end, centercutting tool with a right-hand flute direction and right-hand cutting direction. It belongs to the HEV-C-7 series and is classified as a stub-length roughing tool. Professional machinists and CNC operators in production shops install and run this end mill.

This end mill is intended for roughing operations in ferrous and difficult-to-machine materials. Primary workpiece materials include low-alloy steel, medium alloy steel, tool steel, cast iron, and titanium. It also performs in non-ferrous metals as a secondary application. The stub-length profile provides rigidity for aggressive depth-of-cut strategies. The variable pitch design is particularly effective in reducing harmonic vibration during high-speed or high-feed milling. It is designed for use with high-precision toolholders to maximize runout control and tool life. The HEV-C-7 series is a recognized roughing series from Helical Solutions aimed at production-rate material removal.

Key Features

• 7-flute geometry increases chip load capacity and improves surface finish in finishing and semi-finishing passes
• APLUS PVD coating delivers elevated hardness and oxidation resistance for ferrous and superalloy cutting
• Variable pitch reduces chatter and harmonic vibration at aggressive parameters
• Centercutting design allows plunge entry without a pre-drilled hole
• Stub-length profile maximizes rigidity and minimizes deflection
• Corner radius of 0.0300 inches reduces stress concentration at the cutting edge and extends tool life

Compatibility

Designed for use with high-precision toolholders. Primary workpiece materials are steel, stainless steel, cast iron, superalloys, and titanium (material codes P, M, K, S). Secondary workpiece material is non-ferrous metal (material code N). Part of the Helical Solutions HEV-C-7 series.

Installation Notes

Installation and setup should be performed by a qualified CNC machinist or tooling technician. Use a high-precision toolholder to maintain TIR within the specified maximum of 0.0005 inches; excessive runout accelerates edge wear and reduces tool life. Ensure the machine spindle and toolholder are clean and free of debris before seating the shank. Confirm feeds, speeds, and depth-of-cut parameters are established from the manufacturer tooling data for the specific workpiece material before cutting.