As efficient as the Robert Sorby TurnMaster is; you can now save even more time by purchasing additional interchangable heads. Eliminating need to go through the process of removing cutters each time you wish to change your cutting action. Now you can pre install cutters on multiple heads which will enable you to change in a fraction of the time. The perfect solution for the production focused or time constrained woodturner! – Designed for use with the Robert Sorby Turnmaster