Shoulderless Chucks are spaced at intervals along the working surface of the shaft. They are commonly used to replace expanding shafts, or when heavier torque loads assure deep tooth penetration into the core, eliminating chance of roll side drift. A Flange Chuck is used on the “closed” side of the shaft, while the Shoulderless Chuck is located approximately 3” in from the end of the roll on the opposite end of the shaft. No tools are used. You will save four to six minutes every roll change.