Harvey Tool 16917-C3 Helical Flute Thread Mill M6x1 Solid Carbide

Product Description

The HARVEY TOOL 16917-C3 is a solid carbide helical flute thread mill designed for cutting M6x1 threads in both internal and external applications. It features 3 flutes and an AlTiN coating that improves wear resistance and heat dissipation during high-speed machining operations. The shank diameter measures 0.1875 inches, the cutting diameter is 0.1700 inches, and the overall length is 2.5 inches. This tool is installed by machinists and CNC operators working in precision manufacturing, tooling, and production environments where thread milling is preferred over tapping.

The 16917-C3 is suited for threading operations in ferrous metals, stainless steels, and similar materials where the helical flute geometry helps evacuate chips and reduce cutting forces. With a length of cut of 0.5000 inches and a minimum nominal thread diameter of 6.00 mm, it fits compact workpieces and tight-clearance bores commonly encountered in aerospace, automotive, and general precision machining. It does not include coolant-through capability, making it appropriate for applications where external coolant delivery is standard practice.

Key Features

• Cuts M6x1 threads in both internal and external configurations from a single tool
• 3-flute helical design promotes chip evacuation and smooth cutting action
• AlTiN coating extends tool life in high-temperature cutting conditions
• Solid carbide construction provides rigidity and dimensional consistency
• 0.1875-inch shank diameter fits standard collet and tool holder configurations
• No coolant-through requirement simplifies setup on standard machining centers

Compatibility

Designed as an OEM-style thread milling tool for CNC machining centers and milling machines capable of helical interpolation and accepting a 0.1875-inch shank diameter.

Installation Notes

Thread milling with this tool requires a CNC machining center programmed for helical interpolation. Verify spindle speed, feed rate, and helix pitch match the M6x1 thread specification before running the program. Power down and lock out the machine before changing or inspecting the tool. Seat the shank fully and securely in a collet or tool holder to the manufacturer-recommended engagement depth before operation.