Sorby Modular Tool Rest Stem, 5/8 in. x 3-1/2 in. is a key component of the Robert Sorby Modular Tool Rest System, designed to help woodturners build a versatile collection of tool rests without significant expense. This 3-1/2 inch long stem, or post, fits lathes with a 5/8 inch diameter post holder and threads smoothly into the cross bars, which are specially hardened to prevent nicks and provide a smooth finish. The stems feature two machined flats for easy tightening and removal, and they are compatible with Sorby’s Precision Boring System. With six different types of rests available—including 4", 6", 9", curved internal and external 9" rests, and a box platform—all can be used interchangeably with just one stem, ing great flexibility for turners. Model Number: L765/S16