Aztec Products Inc. has announced the UltraEdge and UltraVac, two new propane- powered machines for concrete floor polishing projects. These two new machines are powered by the Kawasaki 603cc engine, certified by EPA, CARB, LEED and GS- 42, and complete the WorkSmart three- piece cordless grinding, polishing and edging system. The Aztec UltraEdge is an aggressive gear-driven edging machine. Reaching 3 inches under any shelving 5 1/4-inches high, the UltraEdge grinds and polishes within 1/4 inch of walls. The UltraEdge is also equipped with a quick-change Frankfort plate system, allowing for standardization of plates and diamonds to speed changes between grits and to reduce required inventory. The UltraVac is a cord- free vacuum that offers 300 cfm and a HEPA Micro- Clean filter. www.aztecproducts.com