The Roper Whitney No. 0381 manual roll has 2inch precision turned and ground high carbon steel rollers. There are three wiring grooves 3/16″, 1/4″ and 5/16″. All rolls are standard with fully enclosed gear housings and all three rolls are driven. The upper roll lifts for conventional removal of the work piece. The maximum sheet length is 42″ with a thickness capacity of 24 gauge mild steel.