Osg 1663000517 Thread Mill 1-11/2 Npt 6 Flute Solid Carbide

Product Description

The OSG 1663000517 is a solid carbide helical flute thread mill designed for cutting 1-11/2 NPT threads in both internal and external applications. With 6 right-hand flutes and an EgiAs coating, this tool delivers consistent thread geometry and extended tool life in demanding machining environments. The 0.737-inch cutting diameter and 0.957-inch length of cut make it well suited for full-form NPT thread profiles. A 0.75-inch shank diameter provides rigid tool holding in standard milling chucks and collets. This is a precision cutting tool installed and operated by machinists and CNC programmers working with pipe thread applications in metalworking and manufacturing settings.

This thread mill is configured for NPT pipe thread work, covering the 1-11/2 NPT thread standard in a single helical pass. It is appropriate for use in CNC machining centers capable of helical interpolation. Both internal and external thread forms can be produced, making it a versatile option for shops machining pipe fittings, manifolds, valve bodies, and similar components. Coolant-through capability is not available on this tool, so external coolant delivery should be used when cutting in materials that generate significant heat.

Key Features

• Solid carbide construction for rigidity and wear resistance in metalworking applications
• EgiAs coating provides enhanced lubricity and heat resistance at the cutting edge
• 6 right-hand helical flutes for efficient chip evacuation during thread milling
• Cuts both internal and external 1-11/2 NPT thread forms
• 0.75-inch shank diameter for secure clamping in standard toolholders
• Right-hand thread direction compatible with standard CNC helical interpolation routines

Compatibility

Designed for use on CNC machining centers capable of helical interpolation for NPT thread milling applications.

Installation Notes

This tool is installed and operated by machinists using CNC milling equipment with helical interpolation capability. Ensure the spindle and toolholder are clean and properly torqued before use. External coolant should be directed at the cutting zone since this tool does not support coolant-through delivery. Verify programmed thread pitch and interpolation parameters against the 1-11/2 NPT thread standard before running the first part.