Harvey Tool 826519-C3 Thread Mill M2 X 0.40 2 Flutes

Product Description

The HARVEY TOOL 826519-C3 is a solid carbide single profile thread mill designed to cut both internal and external M2 x 0.40 threads in a single tool path. With a 1.5-inch cutting diameter and an overall length of 1.4961 inches, this tool is built for precision threading operations on CNC machining centers. The AlTiN coating improves heat and wear resistance, extending tool life in harder workpiece materials. Two flutes provide efficient chip evacuation in tight thread geometries. This tool is intended for use by machinists and CNC programmers working with fine-pitch metric threads.

This thread mill is suited for precision machining environments where M2 x 0.40 metric threads are required in small-diameter bores or on external features. The single profile design allows one tool to handle both internal and external threading, reducing tooling inventory in job shop or production settings. The 3.00 mm shank diameter and 0.9000-inch neck diameter make it appropriate for close-tolerance work in confined areas. Typical applications include aerospace, medical device, and general precision machining where fine metric threads are specified.

Key Features

• Cuts both internal and external M2 x 0.40 metric threads with a single tool
• Solid carbide construction for rigidity and dimensional stability
• AlTiN coating for improved heat resistance and extended tool life in abrasive or hard materials
• Two-flute geometry promotes chip clearance in small-diameter thread forms
• 1.5-inch cutting diameter with a 0.2756-inch neck length for access in confined features

Compatibility

Designed for use on CNC machining centers capable of helical interpolation for single profile thread milling in M2 x 0.40 metric thread applications.

Installation Notes

This tool requires a CNC machining center with helical interpolation capability and appropriate thread milling CAM programming. Secure the shank in a collet or end mill holder sized for the 3.00 mm shank before use. Verify spindle speed and feed rate parameters against the tool manufacturer recommendations for the workpiece material and coating type. Never exceed the tool's rated engagement depth or attempt use in a manual milling setup.