Osg 1663000417 Thread Mill 1/2-14 Npt 5 Flute Solid Carbide

Product Description

The OSG 1663000417 is a solid carbide helical flute thread mill designed for cutting 1/2-14 NPT internal threads in a CNC milling environment. It features five right-hand flutes and an EgiAs coating for extended tool life in demanding materials. The cutting diameter measures 0.6170 inches with a length of cut of 0.7860 inches, and the shank diameter is 0.6250 inches. At 14 teeth per inch, this tool produces accurate NPT taper thread forms in a single helical interpolation pass. Solid carbide construction provides rigidity and edge retention suited to production threading applications. Licensed machinists and CNC programmers working in metalworking, pipe fitting fabrication, or industrial maintenance are the primary users of this tool.

This thread mill is suited for generating 1/2-14 NPT threaded features in machining centers equipped with helical interpolation capability. NPT threads are used throughout fluid and gas piping systems in plumbing, HVAC, and industrial process piping where tapered thread sealing is required. The tool is appropriate for through and blind hole applications where tap breakage is a concern or where a single tool must cover multiple thread diameters through programmatic offset adjustment. No coolant-through capability is present, so external coolant or air blast is recommended during operation.

Key Features

• 1/2-14 NPT thread form with 14 TPI taper pipe thread standard
• Five right-hand helical flutes for smooth chip evacuation
• EgiAs coating reduces friction and extends cutting edge life
• Solid carbide substrate provides stiffness and dimensional stability
• 0.6170 inch cutting diameter with 0.7860 inch length of cut
• Single tool capable of threading multiple hole diameters via CNC offset

Compatibility

Designed for use in CNC machining centers capable of helical interpolation; produces 1/2-14 NPT tapered pipe thread forms per the NPT thread standard.

Installation Notes

Thread mills are installed and operated by machinists or CNC programmers on 3-axis or higher machining centers. Confirm the machine control supports helical interpolation before programming this tool. Secure the shank in a collet or end mill holder rated for the 0.6250 inch shank diameter and verify runout before cutting. Use appropriate feeds, speeds, and external coolant or air blast, as this tool does not support coolant-through delivery.