Seco 17004497 Npt Thread Mill 4 Flute Solid Carbide

Product Description

The SECO 17004497 is a straight flute thread mill designed to cut 1-11/2 NPT external and internal threads in a single helical pass. Built from solid carbide and finished with an AlCrN coating, this tool offers strong heat and wear resistance in demanding threading operations. It runs on a 5/8 inch shank, carries 4 flutes, and delivers a cutting diameter of 0.62 inches with a 1.125 inch length of cut. The 4 inch overall length suits standard toolholder setups on CNC machining centers. Machinists and tool-and-die professionals use this mill where tap breakage or rigid tapping limitations make thread milling the preferred method.

This thread mill is suited for CNC machining applications requiring NPT pipe thread profiles in materials where solid carbide provides the rigidity and edge retention needed for accurate thread form. The straight flute geometry is appropriate for through-hole and blind-hole applications in short-chipping materials. At 11-1/2 teeth per inch and a 1-inch minimum nominal diameter, it targets standard 1-11/2 NPT fittings and pipe connections common in industrial, fluid-power, and hydraulic manifold work.

Key Features

• Solid carbide construction for rigidity and edge retention in tough materials
• AlCrN coating reduces heat buildup and extends tool life at higher cutting speeds
• Cuts both external and internal 1-11/2 NPT threads with one tool
• 4-flute straight geometry suitable for short-chipping materials and stable CNC setups
• 5/8 inch shank diameter compatible with standard ER and side-lock toolholders
• No coolant-through requirement simplifies machine setup

Compatibility

Designed for use in CNC machining centers capable of helical interpolation for NPT thread milling applications. No specific machine model compatibility was provided by the manufacturer for this part.

Installation Notes

Thread milling requires a CNC control with helical interpolation capability. Verify spindle speed, feed rate, and helical pitch programming match the 11-1/2 TPI NPT profile before cutting. Secure the shank fully in the toolholder to the recommended engagement depth to prevent runout. Inspect the cutting edges before use and do not re-run a worn tool through a finished thread form.