Cleveland high-speed steel chucking reamers 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. Morse taper shank allows the tool to be inserted directly into the machine's spindle to facilitate high-torque applications such as large cut diameters. Straight flute tools allow chips to collect in the flutes as they cut and are well suited for most applications in shallow cuts. General purpose reamer that is used in a variety of applications and materials include alloy-tool steel, cast iron, plastic, aluminum, stainless steel. Morse taper: 4.