This modular tool rest system enables the turner to build up a collection of tool rests without going to great expense. Six different rests are available: 4", 6" and 9"as well as a 9" curved internal and external and a box platform which can be used in conjunction with just one stem. Cross bars are specially hardened to avoid those troublesome nicks and to give a smooth finish. Stems are available in ½", ?", ¾", ?", 1", 25mm, 28mm and 30mm diameters to fit most popular lathes. The same stems are compatible with the Precision Boring System.