Accucut I2Kes 2 Flute 3/8? Carbide Square End Mill - Milling Bit Set For General Usage: Applicable with copper, copper alloys, alumiumn and alumiumn alloy, woodworking, cast iron, steels, carbon steels, alloy steels and stainless steel materials. Best use for materials HRC less than 30. Solide Carbide: The material is European origin ultra fine grain carbide. The carbide rod we select is made with the finest tungsten carbide powder and cobalt, using the best ratio to achieve the most ideal hardness. It is stable and has excellent wear-resistance of the material. It significantly enhances the tool's lifespan and keeps the end mill sharp. It also helps keep the surface quality of your work-piece at the best level possible. AlTiN Coating: It is a strong coating that's coated at temperatures between 450C to 475C. It is able to provide high wear resistance, lubricity, exceptional oxidation resistance, extreme hardness, and excellent abrasive wear resistance. It has higher reliability in dry operations, heat resistance, hard machining, and the resistance can be reduced. Large Flute Gullet: 2 flute end mills have a larger gullet so there's more chip clearance. It is suitable for cutting softer materials such as aluminum and non-ferrous alloys. Therefore, a tool?s strength is less of a concern. A tool can be fed faster, and larger material removal rate is facilitated by the large flute valleys of 2 flute tools. 2 flute end mills are recommended to be used at a slower speed when working with steel. 35 degree Helix: 2 Flute Square Endmill, 3/8" Diameter, 15/16" Cutting Length, 3" Overall Length, 3/8" Shank.