Power Torq Tubesheet Hole Reamers are indeed impressive tools. They are made of high-speed steel and feature 8 flutes, which provide superior performance compared to adjustable reamers. These reamers are specifically designed for heat exchangers and come in a range of sizes from 3/8 to 1 1/4 inches (9.53 – 32.07mm) in outer diameter.
They also have Morse tapers ranging from 1 to 4 and reamer diameters from .380 to 1.262 inches (9.65 – 32.07mm) in accordance with TEMA specifications.