Ideal for owners of Boxford ,Student and any other 4 1/2 centre height lathes! This set up is very well made and very rigid- just what you need when parting off! The shank that you clamp in your toolpost is only 1/2 wide thus allowing this excellent tool to be used in smaller lathes than usual. It can even be adapted to Myfords etc. It is supplied with a HSS blade which is 4mm thick x 24mm wide and 150mm long- Spare blades are readily available