Helical Solutions 81806 Square End Mill 3/8 in 5 Flute Carbide

Product Description

The HELICAL SOLUTIONS 81806 is a solid carbide square end mill designed for finish milling operations in steel and ferrous materials. Featuring a 3/8-inch diameter with a 3/4-inch length of cut, this five-flute tool delivers superior surface finishes and tight tolerances in demanding machining environments. The APLUS coating provides enhanced wear resistance and lubricity, extending tool life in high-speed steel cutting applications. Right-hand cutting and right-hand helical flutes produce efficient chip evacuation. The straight-cylindrical shank measures 3/8 inches in diameter, fitting standard ER and milling chuck toolholders. This tool is intended for use by machinists and CNC operators working in precision metal fabrication and production machining.

The 81806 is suited for finish passes on steel workpieces in vertical machining centers and CNC mills. Its five-flute geometry reduces chip load per tooth, allowing higher feed rates while maintaining fine surface finish quality. The 2.5-inch overall length provides clearance for typical shallow-to-moderate depth milling operations. This end mill is part of the HELICAL SOLUTIONS End Mills for Steels series, specifically the 5 Flute Square Finisher line, optimized for low radial engagement, high-efficiency milling, and finishing passes in alloy steels, tool steels, and stainless steels.

Key Features

• Five-flute design enables higher feed rates and improved surface finish on steel
• APLUS coating provides wear resistance and heat reduction during high-speed cutting
• Solid carbide construction delivers rigidity and dimensional stability
• Center-cutting capable, allowing plunge entry when required
• Right-hand cut and right-hand helical flutes for standard CNC mill configurations
• Straight-cylindrical shank compatible with ER collet chucks and milling chucks

Compatibility

Designed as an OEM-style tooling solution within the HELICAL SOLUTIONS End Mills for Steels - 5 Flute - Square - Finisher series, suited for CNC vertical machining centers and manual mills accepting a 3/8-inch straight-cylindrical shank.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the end mill from the toolholder. Verify collet or chuck runout is within acceptable limits before engaging the tool, as excessive runout accelerates wear and degrades surface finish. Follow the tool manufacturer and machine builder guidelines for speeds, feeds, and depth of cut.