ECO .5PRO 4F.015R 1.0LOC 3.5 OVL,  This hi performance cutting tool designed to handle a wide range of materials, both hard and soft.  .500" Diameter 4 flute flat solid carbide has a length of 3.5" overall. It is an excellent choice for tool steel machining and offers superior cut quality. Its superior strength and durability make it ideal for high speed machining and high accuracy applications. This cutting tool is the perfect choice for achieving precise and efficient cuts.