The 0.4920 CHK REAMER SF SS HS from Field Tool Supply is a high-quality reaming tool designed for precision machining. With a diameter of 0.4920 inches, this reamer is perfect for enlarging holes to exact sizes in stainless steel and other materials. Made from high-speed steel (HSS), it offers exceptional durability and resistance to wear. The SF designation indicates a specific flute design for efficient chip removal. This reamer is ideal for both professional machinists and hobbyists, ensuring accurate hole sizes and smooth finishes in various applications.