The 0.3935 CHK Reamer from Field Tool Supply is engineered for precision reaming in stainless steel. This high-speed steel (HS) tool features a straight flute design, allowing for efficient chip removal and smooth finishes. With a diameter of 0.3935 inches, it is ideal for applications requiring tight tolerances. This reamer is built for durability and can withstand rigorous use, making it a reliable choice for both professionals and DIY enthusiasts. It meets industry standards for quality and performance, ensuring it can handle various reaming tasks with ease.