YG1 55579TN 5/16″ Size, 1-5/8″ LOC, 4 Flute, TiN Solid Carbide Finishing End Mill Fan Favorite

Applications

With a 5/16″ diameter and 1-5/8″ length of cut, the YG1 55579TN solid carbide finishing end mill offers a long reach characterized by a 5.2:1 length-to-diameter ratio, promoting rigidity and precision in deeper slotting and finishing. Its four-flute design paired with a 30° helix angle and TiN coating strikes a balance between chip evacuation and structural strength, making it well-suited for general milling of free-machining steels. The tool matches recommended configurations for easy-machining steel applications, where the combination of 4-flutes and TiN coating supports cost-effective speed and durability. Lacking a corner radius, it requires reliance on coating and flute design to prevent edge chipping, favoring continuous cutting over interrupted operations. This end mill should not be used on heat-resistant superalloys (ISO S) due to TiN coating unsuitability. Although capable of machining cast iron, non-ferrous, and stainless steel, its best performance and longevity occur primarily with steel (ISO P) materials.

Features

• Suitable for cutting hardened & high alloy steels, steel casting, chill casting, malleable cast iron, CrNi-steels, brass, copper, aluminum with a high percentage of silicon and abrasive plastics.