Helical Solutions 81862 Corner Radius End Mill 1/4 in 5 Flute

Product Description

The HELICAL SOLUTIONS 81862 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. It features a 1/4 inch diameter, a 0.0600 inch corner radius, and five flutes with a variable pitch configuration for reduced harmonic vibration during cutting. The Tplus PVD coating provides enhanced wear resistance and thermal stability. With a 1 inch length of cut and 3 inch overall length, this single-end, center-cutting tool is suited for both roughing and finishing operations on difficult materials. It is installed in high-precision toolholders by machinists and CNC operators.

This end mill is optimized for primary use in stainless steel, superalloys, and titanium, and is also rated for secondary applications in non-ferrous metals and hard materials. The HEV-5 series designation indicates a five-flute, variable-index geometry engineered for aggressive chip evacuation and surface finish quality in tight-tolerance work. Typical applications include profiling, slotting, and contouring in aerospace, medical, and industrial component machining where corner integrity is critical.

Key Features

• Solid carbide construction for rigidity and heat resistance at elevated cutting speeds
• Tplus PVD coating for extended tool life in stainless steel, superalloys, and titanium
• 0.0600 inch corner radius with a tolerance of -0.0020 to 0.0020 inches for consistent edge geometry
• Variable pitch, right-hand spiral flutes reduce chatter and improve surface finish
• Center-cutting capable — supports plunge and ramp entry operations
• Straight cylindrical shank with h6 tolerance for secure, accurate toolholder seating

Compatibility

Designed for use with high-precision toolholders. Suited for CNC machining centers where 1/4 inch straight-cylindrical shank tooling is specified. Primary workpiece materials are stainless steel, superalloys, and titanium; secondary materials include non-ferrous metals and hard materials.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the toolholder is clean and free of debris before seating the shank. Use a torque wrench appropriate to the toolholder manufacturer specification when clamping. Confirm runout does not exceed the maximum TIR of 0.0005 inches before beginning a production cut.