NPT14-18 carbide thread milling cutter. For machining  NPT14-18 internal threads. Full tooth spiral groove. Threaded cutter 9.9mm in diameter. Machining length 14.1mm. Shank diameter 10 mm. High performance solid carbide. WALTER 5 axis grinding. High-end surface plating finish. Suitable for carbon steel, stainless steel, cast iron, heat treated steel. Alloy steels.