Helical Solutions 86190 Corner Radius End Mill 6 Flute

Product Description

The HELICAL SOLUTIONS 86190 is a solid carbide corner radius end mill engineered for demanding material removal in superalloys and titanium. It carries a 0.5 inch mill diameter, a 1 inch length of cut, and a 0.0300 inch corner radius, making it well suited for both roughing and finishing passes in high-temperature alloy applications. The 6-flute, variable-index geometry reduces harmonic vibration during aggressive cuts. A Tplus PVD coating provides thermal resistance and wear protection at elevated cutting temperatures. The straight cylindrical shank measures 0.5 inches in diameter and the tool runs 3 inches overall length. A TIR maximum of 0.0005 inches supports use in high-precision toolholders.

This end mill is intended for machining superalloys and high-temperature alloys including titanium, where tool life and surface finish are critical. It fits standard CNC machining center applications in aerospace, medical device, and energy sector shops. The single-end, right-hand cutting configuration suits conventional vertical and horizontal milling setups. High-precision toolholders are recommended to take full advantage of the tight runout tolerance. It is catalogued in the HVNI-6 series, which is built specifically around difficult-to-machine materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard-to-machine alloys
• Tplus PVD coating rated for high-temperature alloy cutting environments
• Variable-index flute spacing reduces chatter and vibration during cuts
• 0.0300 inch corner radius with a tolerance of -0.0020 to 0.0020 inches protects corners and improves edge life
• TIR maximum of 0.0005 inches supports precision toolholder pairing
• Right-hand spiral flutes with single-end configuration for standard CNC setups

Compatibility

Designed for use with high-precision toolholders. Intended primarily for machining superalloys and titanium in CNC milling applications. Part of the HVNI-6 series.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with CNC end mill setup procedures. Secure the shank fully into a clean, high-precision toolholder collet and verify runout before cutting. Power down and lock out the spindle before changing tooling per machine-specific lockout procedures. Do not exceed the tool manufacturer recommended feeds and speeds for the workpiece material grade.