The Aztec UltraEdge professional concrete grinder and polisher’s aggressive planetary action is gear driven and eliminates cords and generators. The UltraEdge is ideal for reaching 3” under any 5¼” high shelving and for grinding and polishing within ¼” of walls. Proudly Made in the USA, as part of the UltraGrind WorkSmartTM 3-Piece Cordless Grinding, Polishing, and Edging System. Starter and specialty packages are available for chemicals, diamonds, propane vacuums and hand grinders. Powered by the PurePowerLPG engine with and EPA, CARB, LEED and GS-42 certified. Lower emissions Blue Sky certified engine also available as an upgrade.