Harvey Tool 993106-C6 Thread Mill 56-64 Tpi Solid Carbide

Product Description

The HARVEY TOOL 993106-C6 is a single profile thread mill designed to cut both internal and external threads in the 2-56 to 2-64 thread size range, covering 56 to 64 TPI. Built from solid carbide and finished with an AlTiN Nano coating, this tool handles fine-pitch threading in hard and abrasive materials. The 0.064-inch cutting diameter and 0.041-inch neck diameter make it suited for small-diameter thread milling on CNC machining centers. With 3 flutes and a 1.5-inch overall length, it provides stable chip evacuation and reach in confined bores. Machinists and CNC programmers working on precision components specify this tool for its ability to cut both thread forms in a single setup.

This thread mill is used in CNC milling operations where small-diameter, fine-pitch threads are required in metallic workpieces. It is appropriate for residential and industrial precision machining environments, including aerospace, medical device, and general manufacturing applications. The single-profile design allows the operator to produce a range of thread pitches within the 56-to-64 TPI window using helical interpolation, reducing the need for multiple dedicated thread tools. It is well suited for threading operations in stainless steel, hardened steel, titanium, and other difficult-to-machine alloys where the AlTiN Nano coating provides thermal and wear resistance.

Key Features

• Cuts both internal and external threads from 2-56 to 2-64 in a single tool
• AlTiN Nano coating for extended tool life in hard and abrasive materials
• Solid carbide construction for rigidity and dimensional stability
• 3-flute geometry promotes chip evacuation in fine-pitch threading
• 0.041-inch neck diameter allows reach into small-diameter bores
• 1/8-inch shank diameter compatible with standard collet chuck toolholding

Compatibility

Designed for use on CNC machining centers capable of helical interpolation; accepts a 1/8-inch shank in standard ER or precision collet chucks. No specific machine model compatibility was provided in the product data.

Installation Notes

Installation and operation of this tool should be performed by a qualified CNC machinist or tooling technician. Ensure the spindle is fully stopped and the machine is in a safe state before loading or unloading the tool from the toolholder. Verify runout at the collet before threading operations, as excessive runout accelerates wear and affects thread quality on small-diameter tools. Always program helical interpolation moves within the rated cutting diameter and confirmed depth of cut parameters for the workpiece material.