Carmex MT0625D11115NPT Npt Thread Mill 4 Flute Solid Carbide

Product Description

The CARMEX MT0625D11115NPT is a solid carbide helical flute thread mill engineered for cutting NPT (National Pipe Taper) threads in the 1 - 11-1/2 to 2 - 11-1/2 size range. With a 0.625-inch shank diameter, a 0.625-inch cutting diameter, and a 4-inch overall length, this tool is built for rigid, precise thread milling on CNC machining centers. The TiAlN coating improves heat resistance and extends tool life in demanding ferrous and non-ferrous materials. At MT7 material grade, the carbide substrate handles interrupted cuts and hard materials without chipping. This tool is used by machinists and tool-and-die professionals producing threaded pipe connections in production and job-shop environments.

This thread mill covers both internal and external NPT thread profiles in the 1-inch through 2-inch nominal diameter range, making it a versatile single-tool solution for pipe thread applications. It is suited for use in steel, stainless steel, cast iron, and similar materials where a tapered pipe thread is required for pressure-tight connections. The 1.09-inch length of cut and 4-flute right-hand helical geometry support consistent chip evacuation during full-engagement thread milling passes. With a 2.9-inch shank length, the tool provides adequate reach for typical pipe-port and manifold applications on CNC mills and machining centers.

Key Features

• Cuts NPT threads from 1 - 11-1/2 to 2 - 11-1/2 in a single tool
• Machines both internal and external thread profiles
• Solid carbide MT7 substrate for rigidity and wear resistance
• TiAlN coating for elevated heat resistance and extended tool life
• 4-flute right-hand helical geometry for efficient chip removal
• No coolant-through requirement simplifies setup on standard CNC equipment

Compatibility

Designed for use on CNC machining centers capable of helical interpolation thread milling. Produces NPT-standard tapered pipe threads per the thread specifications stated by the manufacturer for the 1 - 11-1/2 to 2 - 11-1/2 size range.

Installation Notes

This tool requires a CNC machining center with helical interpolation capability and a toolholder sized for a 0.625-inch shank. Verify spindle speed, feed rate, and helix angle parameters against the manufacturer cutting data for the workpiece material before running. Secure the shank with appropriate side-lock or collet toolholding to minimize runout. Inspect the cutting edges for chipping before each use, as carbide thread mills are sensitive to side loads from improper entry moves.