1,Honda gasoline,electric 2,Quick-change drum 3,Non dust operation 4,Chip away concrete,asphalt, ... , asphalt, and epoxy. Different style of interchangeable cutter achieves the profile you need. Quick-change drum design allows you change cutter in minutes.epoxy ... , hydraulic drive;Good design and heat treatment guarantee machine quality;Change the drum assembly only in 5 minutes;Sharp TCT cutter ...