The 0.4210 Carbide Chuck Reamer from Field Tool Supply is engineered for precision drilling in stainless steel and other tough materials. This high-performance reamer features a carbide construction that provides exceptional wear resistance and longevity. With a diameter of 0.4210 inches, it is perfect for achieving precise hole sizes in various applications. The reamer is designed to fit standard chuck sizes, ensuring compatibility with most drilling equipment. Ideal for professionals seeking reliable tools for high-speed machining tasks, this reamer meets stringent industry standards for quality and performance.