Perfect fit for most lathes This Teknaool Nova Modular small bowl rest is a perfect fit for almost any size of lathe. The solid steel small bowl rest is constructed from 1-1/8"-wide x 3/16"-thick steel and features a radius work surface with a tough enamel finish that allows the tool to glide smoothly over the rest all while providing better control. The 5-3/16" (132mm) diameter curvature of this rest allows it to be used in either orientation providing left or right positioning. When more precise tool control for smaller work is needed on larger lathes, this will more than fill the bill. Tool rest bar requires one of the Nova Tool Rest Posts (sold separately). Note: Nova Modular Tool Rest System in not compatible with any other modular rest systems.