Abstract: A divider assembly for removable attachment to a dividing and rounding machine, the assembly including a divider blade formed into a circular geometric pattern, with relatively movable plugs fitted into the openings of the geometric pattern, the blade being affixed to a divider plate having openings and the plugs projecting through the openings. The top ends of the plugs are fitted through a plug plate and have reduced diameter shanks for engagement into keyhole-shaped openings in a lock plate. Two knobs are threadable into the respective plates to hold the entire assembly together.