Widin Carbide Square End Mill is a 2-flute square-end cutter designed for mold and die work and other precision milling. With a W coating and a purpose-built gash tooth geometry, it delivers reliable cutting on hard steels and alloys while helping you maintain consistent finishes. Ideal for engineers, machine shops, tradespeople, and hobbyists working on molds and dies in steels below 55 HRc and in pre-hardened, alloy, and carbon steels. W coating for longer tool life: The advanced W coating enhances wear resistance, delivering longer tool life and more stable cutting performance across demanding materials. Gash tooth design to prevent flute chipping: Specially shaped gash teeth reduce the risk of flute chipping and improve chip evacuation for smoother, more reliable milling. Wide cutting diameter range with tight tolerance: Cutting diameter range from 0.1m to 20.0mm with a precise +0/-0.012mm tolerance, offering versatility for various mold and die features without frequent tool changes. This end mill is built to improve productivity and consistency in mold and die applications. The combination of wear-resistant materials, a robust coating, and a thoughtfully engineered geometry helps you complete tighter-tolerance pockets and intricate details with fewer interruptions, while delivering dependable finishes on pre-hardened steel, alloy steel, and carbon steel.