Cleveland high speed steel taper pin reamer are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Round shanks allow use with a wide variety of toolholding systems. Straight flute tools allow chips to collect in the flutes as they cut and are well suited for most applications in shallow cuts. Right-hand cut tools have a cutting action that engages when they are run in a clockwise direction. General purpose reamer that is used in a variety of applications and materials include alloy-tool steel, carbon steel, plastic and cast iron. 0.1287-inches small end diameter. 0.1638-inches large end diameter.