A combination roll has a roll shaft and a plurality of roll units mounted on the roll shaft. The roll units include an end roll unit which can be locked to the roll shaft. Each of the roll units comprises a roll portion formed with a contact portion and a shaft inserting portion which has engaging means at each of opposite ends thereof. The diameter of the shaft inserting portion is less than the diameter of the roll portion. All of the roll units are engaged by the engaging means, thereby forming an assembled roll, and are locked to the roll shaft through the end roll unit.