... operation 4,Chip away concrete,asphalt,epoxy surface planer Scarifier, also called floor milling machine,or floor ... surface. The machine rotates with blunt or flat TCT cutter, or flails, at high speed to chip ... the drum assembly only in 5 minutes;Sharp TCT cutter is aggressive to remove coatings;Vacuum and ... six axis, a drum, special heat treatment; with TCT blades. Easy to replace the drum assembly. 4, ...