Helical Solutions 82520 Square End Mill 5/16 in 5 Flute Carbide

Product Description

The HELICAL SOLUTIONS 82520 is a 5-flute solid carbide square end mill designed for high-performance milling in steel and ferrous alloys. With a 0.3125 inch cutting diameter and a 1.5625 inch length of cut, it handles aggressive material removal while maintaining dimensional accuracy. The variable index flute spacing reduces harmonic chatter, and the APLUS coating adds surface hardness and heat resistance to extend tool life in demanding cutting environments. This end mill is center-cutting, allowing plunge entry, and features right-hand cutting and right-hand helical flutes.

This tool is suited for machinists and CNC operators running steel milling operations in job shops, production environments, and tool rooms. It is optimized for the HELICAL SOLUTIONS End Mills for Steels series, targeting applications where chatter control and tool longevity in ferrous materials are priorities. The straight cylindrical shank fits standard collets and end mill holders. Overall length is 4 inches, making it appropriate for moderate-reach applications without sacrificing rigidity.

Key Features

• 5-flute geometry increases chip load capacity and improves surface finish in steel
• Variable pitch (variable index) flute spacing reduces chatter and vibration during cuts
• APLUS coating enhances wear resistance and heat dissipation for extended tool life
• Center-cutting design allows direct plunge entry into workpiece material
• Solid carbide construction provides rigidity and dimensional stability under load
• Right-hand cut, right-hand helical flutes for standard spindle direction compatibility

Compatibility

Part of the HELICAL SOLUTIONS End Mills for Steels - 5 Flute - Square - Variable Pitch series. Designed for use with standard straight-cylindrical collets and end mill holders accepting a 0.3125 inch shank diameter.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a safe, locked-out state. Ensure the collet or tool holder is clean and free of debris before seating the shank. Verify runout with a dial indicator after clamping to avoid premature tool wear. Follow the tool manufacturer's recommended speeds and feeds for the target material grade.