Manual bead removing equipment for internal beads from 4iomm to 61omm ID (soomm to 63omm OD). Internal debeader for removing the weld bead in PE and PP plastic pipe. After adjusting the internal debeader to the appropriate size. insert it into the pipe until you feel a bump". then turn the handle clockwise 36o degrees and pull it out along with the bead. Note that debeading must be completed within the first 1/3 of the weld cooling time.