The Machinist Steady Rest for Lathe is a tooling and accessories product specifically designed for steady and precise work on lathes. Made in the United States by an unspecified brand, this 2.75 steady rest is essential for maintaining the accuracy and stability of the machining process. It is a must-have for metalworking equipment, especially for CNC machines and other metalworking tools. With its sturdy construction and reliable performance, this steady rest is a valuable addition to any machining setup. I’m calling this a 2-3-4 inch steady rest, I really don’t know how to measure them. I just went by what appears to be the biggest size that you could put through the hole. Obviously, I’m not an expert at this. Please let me know if I’m correct or incorrect.