3/8-16UNC solid carbide thread milling cutter. For machining 3/8-16UNC internal threads. Full tooth spiral groove. Threaded cutter 7.65mm in diameter. Machining length 20mm. Shank diameter 8 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.