Helical Solutions 81381 Square End Mill 3/16 in 3 Flute Carbide

Product Description

The HELICAL SOLUTIONS 81381 is a 3-flute solid carbide square end mill designed for high-performance milling in aluminum and non-ferrous materials. It features a 3/16 inch (0.1875 inch) cutting diameter, a 35-degree helix angle, and a reduced neck profile that provides extended reach of 1 inch while maintaining rigidity in deep-pocket and slotting applications. The bright uncoated finish suits aluminum machining where coatings can cause material adhesion. This tool is installed by machinists and CNC operators in job shops, production facilities, and aerospace or automotive component manufacturing environments.

This end mill is suited for milling aluminum, soft alloys, and similar non-ferrous workpiece materials. The reduced neck and extended reach design makes it well-suited for deep-cavity milling, side milling, and profiling operations where clearance between the tool shank and workpiece wall is a concern. The right-hand cut and right-hand helical flute geometry promote efficient chip evacuation, reducing heat buildup and re-cutting of chips. It accepts standard straight-cylindrical shank collets and tool holders at 3/16 inch shank diameter.

Key Features

• 3-flute solid carbide construction for rigidity and wear resistance in aluminum milling
• 35-degree helix angle promotes smooth chip flow and reduced cutting forces
• Reduced neck design with 1 inch reach length for deep-pocket access
• Center-cutting capability allows plunge entry into the workpiece
• Bright uncoated finish prevents aluminum adhesion and built-up edge
• Right-hand cut and right-hand flute direction for standard CNC spindle compatibility

Compatibility

Designed for use in standard straight-cylindrical collet chucks and end mill holders with a 3/16 inch bore, compatible with CNC machining centers and manual mills equipped for solid carbide tooling in aluminum and non-ferrous milling applications.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or end mill holder to the recommended gauge length and verify runout before cutting. Follow the tool manufacturer and machine builder guidelines for feeds, speeds, and depth of cut appropriate to this diameter and material.