Helical Solutions 86438 High-feed End Mill 5 Flute

Product Description

The HELICAL SOLUTIONS 86438 is a solid carbide, high-feed end mill designed for aggressive material removal in CNC milling operations. Running a 0.625-inch diameter with a 0.0785-inch program radius, this 5-flute single-end tool is built for high-efficiency machining (HEM) and high-feed strategies. The Tplus coating improves wear resistance and thermal stability, extending tool life in ferrous and hardened materials. Coolant-through design delivers cutting fluid directly to the cutting zone, helping manage chip evacuation and heat at the tip. Licensed machinists and CNC programmers rely on this geometry for both roughing and finishing passes in demanding production environments.

This end mill is suited for use in vertical and horizontal CNC machining centers running high-feed toolpaths. The variable pitch flute geometry reduces harmonic vibration during deep axial cuts. The chipbreaker design supports extended length-of-cut applications where chip control is critical. With a 2.125-inch length of cut and a 4-inch overall length on a 0.625-inch shank, this tool handles deep-pocket and side-wall milling in steel, stainless, cast iron, and similar materials where aggressive feed rates are required.

Key Features

• 5-flute variable pitch design reduces chatter and harmonic vibration during high-feed passes
• Chipbreaker geometry aids chip evacuation in long-reach and deep-pocket applications
• Coolant-through construction delivers fluid directly to the cutting edge for thermal management
• Tplus coating provides enhanced wear resistance and heat tolerance in ferrous materials
• Single-end solid carbide construction for rigidity and dimensional stability under load
• 0.0785-inch program radius supports high-feed toolpath programming in CAM software

Compatibility

Designed for use in CNC machining centers with coolant-through spindle capability and tool holders accepting a 0.625-inch shank diameter. Part of the HELICAL SOLUTIONS Feed Mills - Combination Feed and HEM - 5 Flute - Chipbreaker - Variable Pitch - Coolant Through series.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling technician. Secure the shank in a precision collet or hydraulic tool holder rated for the shank diameter before any spindle operation. Verify coolant-through passages are clear and system pressure is matched to tool specifications before running. Always confirm toolpath program radius settings match the 0.0785-inch radius parameter in CAM software before cutting.