The product is a 45-degree high speed steel dovetail cutter manufactured by KEO USA. It has a cutting/head diameter of 1 inch and a shank diameter of 1/2 inch. This milling cutter is designed for precision cutting and is made from durable high speed steel, ensuring long-lasting performance in metalworking applications. Made in Japan, this new cutter is a reliable tool for professionals in the CNC and metalworking industry.