The #4 CHK Reamer by Field Tool Supply is crafted from high-speed steel (HSS) for superior cutting performance. This reamer is designed for precision reaming in stainless steel and other tough materials, providing a clean finish. With a size of #4, it is compatible with standard drill sizes, making it an essential tool for various applications. Manufactured in the USA, this reamer adheres to strict quality standards, ensuring reliability and longevity. Its straight flute design enhances chip removal, making your reaming tasks more efficient.