Boxford VSL Boxford Lathe Vari-speed belt. Unfortunately, the exact belt is no longer available but one close can be supplied. In order to obtain the whole speed range, this will need 1/4" (6mm) packing piece between cross-shaft and hangers to increase the distance to the motor. However, this is not essential as only a little of the slowest speed will be lost if the belt is fitted "as-is". Sent insured by Royal Mail Special Delivery.