Seco 17004493 Thread Mill 1/2-14 Npt 4 Flute Solid Carbide

Product Description

The SECO 17004493 is a straight flute thread mill designed for cutting 1/2-14 NPT threads in both external and internal applications. Built from solid carbide and coated with AlCrN for heat and wear resistance, this tool handles the demands of tapered pipe thread milling on a wide range of workpiece materials. It features 4 flutes with a 0.495-inch cutting diameter and a 0.875-inch length of cut, making it well suited for full-thread engagement on standard NPT pipe thread sizes. With a 4-inch overall length and a 1/2-inch shank diameter, it mounts directly in standard collet or milling chucks on CNC machining centers. Machinists and tool-and-die professionals are the primary users of this cutter.

This thread mill is used in precision machining environments where NPT pipe threads must be produced to specification in a single helical interpolation pass. It is appropriate for both production and job-shop settings requiring external and internal 1/2-14 NPT thread forms. The 14 teeth-per-inch geometry matches the NPT standard thread pitch. It is a solid-carbide tool intended for use in CNC machining centers capable of helical interpolation, and it performs in ferrous and non-ferrous materials where AlCrN coating provides a thermal barrier at the cutting edge.

Key Features

• Cuts 1/2-14 NPT threads in both external and internal configurations in a single tool
• Solid carbide construction for rigidity and wear resistance in demanding machining applications
• AlCrN coating provides high-temperature oxidation resistance and extended tool life
• 4 straight flutes with 14 TPI geometry matched to NPT thread standard
• 0.495-inch cutting diameter with 0.875-inch length of cut for full NPT thread engagement
• No coolant-through design — suitable for flood or mist coolant delivery from the exterior

Compatibility

Designed for CNC machining centers capable of helical interpolation; produces 1/2-14 NPT external and internal threads. The 1/2-inch shank diameter fits standard ER collet chucks and milling tool holders.

Installation Notes

This tool is installed and operated by machinists on CNC milling or machining center equipment. Secure the 1/2-inch shank in a properly sized collet or end mill holder and verify runout before threading operations. Program helical interpolation at the correct thread pitch for NPT 1/2-14 geometry. Never run thread mills in manual or non-interpolating modes, and always verify spindle speed and feed rate against the tool manufacturer's cutting data recommendations for the workpiece material.