Harvey Tool 993902 Thread Mill 0-80 80 Tpi Solid Carbide

Product Description

The HARVEY TOOL 993902 is a single profile thread mill designed to cut unified miniature 0-80 threads in both internal and external applications. Built from solid carbide with a bright uncoated finish, this two-flute tool operates at a cutting diameter of 0.044 inches and mounts on a 1/8-inch shank. Its neck diameter of 0.024 inches provides the clearance needed to reach thread depths in tight bores. CNC machining centers running helical interpolation routines are the standard platform for this tool, making it a choice for precision machine shops, aerospace component manufacturers, and instrument fabricators working at the small-diameter end of the inch-thread range.

This thread mill is suited for small-part machining where a single tool must produce both internal and external 0-80 threads to tight tolerances. The single profile geometry means the tool traces one thread form per helical pass, giving operators direct control over pitch diameter. Applications include instrument housings, optical mounts, medical device components, and other precision assemblies that rely on 0-80 fastener threads. At 1.5 inches overall length with a 0.25-inch neck, the tool reaches moderate-depth features without excessive overhang.

Key Features

• Cuts both internal and external 0-80 threads with a single tool
• Solid carbide construction for rigidity and wear resistance at small diameters
• Two-flute design balances chip evacuation and cutting edge strength
• 0.024-inch neck diameter provides clearance in confined bore entries
• Bright uncoated finish suitable for a wide range of workpiece materials
• Single profile geometry allows independent pitch diameter adjustment at the CNC controller

Compatibility

Designed for use on CNC machining centers capable of helical interpolation, accepting a 1/8-inch straight shank. Produces 0-80 unified miniature threads per standard inch-thread form specifications.

Installation Notes

Installation and operation of this thread mill requires a CNC machining center with helical interpolation capability and a collet or toolholder sized for a 1/8-inch shank. Confirm runout at the collet before programming, as excessive runout at this diameter will directly affect thread quality. Power down the spindle and follow lockout procedures before changing or inspecting the tool. At 0.044 inches cutting diameter, handle the tool carefully to avoid chipping the carbide flutes during setup.