Helical Solutions 81706 Square End Mill 3/16 in 5 Flute Carbide

Product Description

The HELICAL SOLUTIONS 81706 is a 5-flute solid carbide square end mill designed for high-performance milling in ferrous and non-ferrous materials. It features a 3/16 inch cutting diameter, a 7/16 inch length of cut, and a 2 inch overall length. The APLUS coating improves wear resistance and extends tool life in demanding cutting conditions. A variable index flute spacing reduces harmonic vibration during the cut, contributing to improved surface finish and more consistent chip evacuation. This end mill is installed and operated by machinists and CNC programmers in job shop and production environments.

The 81706 is suited for slot milling, profiling, and peripheral milling operations on CNC machining centers and manual knee mills. Its 3/16 inch straight cylindrical shank fits standard ER collet chucks and end mill holders. The helical right-hand flute geometry and right-hand cutting direction make it compatible with conventional climb and conventional milling strategies. It is a single-end tool intended for precision work where tight tolerances and fine surface finishes are required.

Key Features

• 5-flute design increases chip load per tooth and improves material removal rate versus 4-flute tools
• Variable index flute spacing reduces chatter and vibration during aggressive cuts
• APLUS coating provides enhanced heat resistance and extended tool life
• Solid carbide construction delivers rigidity and dimensional stability
• Center-cutting geometry allows plunge entry into the workpiece
• Right-hand cutting and right-hand helical flutes for standard spindle rotation

Compatibility

Designed for use in standard ER collet chucks and end mill holders accepting a 3/16 inch straight cylindrical shank, compatible with CNC machining centers and manual mills equipped for solid carbide tooling.

Installation Notes

Installation is performed by a machinist or CNC tooling technician. Ensure the spindle is fully stopped and the machine is in an energy-isolated state before changing tooling. Seat the shank fully into the collet or holder and torque the retention nut to the tool holder manufacturer specification. Verify runout with a dial indicator before beginning production cuts, as excessive runout accelerates wear on a 5-flute tool and degrades surface finish.