Helical Solutions 81722 Corner Radius End Mill 5/32 in 5 Flute

Product Description

The HELICAL SOLUTIONS 81722 is a solid carbide, 5-flute corner radius end mill designed for high-performance material removal in ferrous and non-ferrous machining applications. It measures 5/32 inch (0.1562 inch) in diameter with a 3/16 inch length of cut and a 0.0100 inch corner radius. The tool features an APLUS PVD coating, a variable-pitch flute design, and a right-hand cutting direction. It is center-cutting and capable of both roughing and finishing operations in a single tool. Machinists and tooling specialists select this end mill for precision work requiring tight tolerances and consistent edge geometry.

This end mill is suited for machining steel, cast iron, stainless steel, non-ferrous metals, superalloys, titanium, and hard materials. The stub-length, straight-cylindrical shank at 3/16 inch diameter makes it compatible with high precision toolholders. It is well matched for tight-clearance slots, contoured profiles, and corner-radius blending passes in die-mold, aerospace, and general machine shop environments. The HEV-5 series designation indicates a variable-index geometry optimized for chatter reduction and smooth chip evacuation.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding materials
• APLUS PVD coating extends tool life in steel and cast iron applications
• Variable-pitch flute geometry reduces harmonic chatter during cut
• Center-cutting design allows direct plunge entry without a pre-drilled pilot hole
• 0.0100 inch corner radius with a tolerance of -0.0020 to 0.0020 inch for consistent edge blending
• Stub-length overall at 2 inches supports rigidity in close-clearance setups

Compatibility

Designed for use with high precision toolholders. Primary workpiece materials are steel and cast iron; secondary materials include stainless steel, non-ferrous metals, superalloys, titanium, and hard materials.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the toolholder and spindle are clean and within runout specifications before seating the shank; maximum TIR is 0.0005 inch for this tool. Confirm the machine spindle is fully stopped and the control is in a safe state before inserting or removing any cutting tool. Use a high precision collet or toolholder consistent with the 3/16 inch shank diameter to achieve rated performance.