HRC65 Full Tooth Thread Cutter(NPT)

HRC65 Full-Tooth NPT Thread Milling Cutter

High-Precision Thread Milling Solution for Hardened Steel Taper Pipe Threads

The HRC65 full-tooth NPT thread milling cutter is specifically engineered for high-precision internal and external thread milling of American standard 60° taper pipe threads (NPT) on hardened steels up to HRC65. Crafted from ultra-fine grain carbide, this tool offers exceptional wear resistance, thermal stability, and fracture toughness, making it ideal for dry machining or MQL environments in CNC applications. Perfect for mold steels, tool steels, and other high-hardness alloys.

Engineered for Hardened Materials (HRC46–68)
Optimized for milling threads in heat-treated tool steel, mold steel, and alloy steel, maintaining sharp edges and geometric integrity even under continuous high-load conditions.

Full-Tooth Profile for One-Pass Thread Forming
The full-tooth design enables simultaneous milling of internal and external NPT threads in a single pass—reducing cycle time, improving thread form accuracy, and enhancing overall production efficiency.

Supports Both Right-Hand and Left-Hand Threading
One tool for both right- and left-hand thread milling increases operational flexibility across a wide range of part geometries and assembly configurations, minimizing tool changes.

Capable of Milling Large-Size Threads with Consistent Pitch
With precise CNC path control, this cutter can handle larger NPT thread sizes that share the same pitch—ideal for non-standard pipe fittings, custom connectors, and specialty components.

Variable Helix Design Minimizes Vibration and Burrs
An unequal helix angle geometry reduces harmonic vibration and chatter, resulting in cleaner threads, better surface finish, and improved sealing integrity in critical assemblies.

Ultrafine-Grain Carbide Substrate for Maximum Toughness
Manufactured from premium-grade micro-grain tungsten carbide, this tool balances high hardness with superior resistance to cracking and thermal stress—essential for high-speed, dry cutting conditions.

High-Precision 5-Axis CNC Ground for Consistency
Precision-ground using 5-axis CNC machining to ensure excellent profile accuracy, symmetry, and repeatability—ideal for high-volume production of precision-threaded parts.