The 0.4060 Chk Reamer SF SS HS from Field Tool Supply is a precision reaming tool designed for creating smooth, accurate holes in various materials. With a diameter of 0.4060 inches, this reamer is perfect for finishing holes to precise dimensions. Constructed from high-speed steel, it provides exceptional durability and cutting efficiency. The reamer's design promotes optimal chip removal and reduced friction, making it suitable for both professional and DIY projects. This tool complies with industry standards for quality and performance.