Helical Solutions 86369 Lens Form Barrel Cutter End Mill

Product Description

The HELICAL SOLUTIONS 86369 is a solid carbide, lens form barrel cutter end mill engineered for multi-axis finishing operations on stainless steel and high-temperature alloys. With a 0.5 inch length of cut, 0.5 inch shank diameter, and a 3 inch overall length, this tool is built for the demanding tolerances and material characteristics found in aerospace, medical, and energy component machining. The Tplus finish coating improves lubricity and wear resistance, extending tool life in difficult-to-machine materials. Four flutes deliver a balance of chip evacuation and surface finish quality on contoured and 5-axis toolpaths.

This end mill is intended for use in multi-axis CNC machining centers where barrel or lens form geometry allows the tool to take wider stepovers on curved surfaces compared to standard ball nose end mills. Typical applications include turbine blades, impellers, mold cavities, and other complex 3D contour finishing passes. It is suited for professional machinists and tool and die shops running stainless steel, titanium, Inconel, and similar high-temp alloy workpieces.

Key Features

• Lens form barrel geometry enables wider stepovers and improved surface finish on multi-axis contoured cuts
• Solid carbide construction provides rigidity and heat resistance required for stainless and high-temp alloys
• Tplus finish coating reduces friction and improves tool life in abrasive and work-hardening materials
• 4-flute design balances chip clearance with surface quality on finishing passes
• 0.5 inch shank diameter fits standard ER and hydraulic toolholders common in CNC machining setups
• 3 inch overall length provides adequate reach for typical multi-axis setups without excessive overhang

Compatibility

Designed for use in multi-axis CNC machining applications targeting stainless steel and high-temperature alloy finishing, as part of the Helical Solutions End Mills for Stainless and High Temp Multi-Axis Finishers series.

Installation Notes

Installation should be performed by a qualified CNC machinist or tooling specialist. Secure the 0.5 inch shank in a properly sized, clean toolholder and verify runout before operation. Always confirm spindle speed, feed rate, and depth of cut against the toolpath program and material specifications before engaging the cut. Inspect the cutting edges for chips or wear before each use.