The MULTIBRETON TRIM /T/2 consists of a carriage which mounts two cutting discs. This carriage moves perpendicularly in respect to the slab being conveyed. A system of sensors relay information to the machine which stops the slab conveyor when the slab reaches the correct cutting position. Once each cutting operation is terminated, a pneumatic system raises the discs returning them to their original position and the slab is then conveyed forwards. The disc carriage moves along guides which are enclosed in a labyrinth protective housing. The waste shavings simply fall into a collection hopper mounted on free-moving rollers positioned underneath (optional accessory) and which is manually removed for emptying. Upon specific request this collection hopper can be replaced with a motorised conveyor system to convey the waste shavings to a larger collection hopper located outside of the workplace.