The AA020 Piccola Rotary Gunite Machine is easy to own, operate, and maintain. It is ideal for dry and underground shotcreting, concrete repair, and refractory installations up to 6 cu.-yds./hr. It offers precise material output, with the ability to deliver a maximum 3/8-in. aggregate. Blastcrete Equipment Co. 800-235-4867. www.blastcrete.com