The UltraEdge aggressive gear-driven, propane-powered edging machine reaches 3 in. under 5  1/4-in.-high shelving and grinds and polishes within 1/4-in. of walls. The product is equipped with the manufacturer’s same quick-change Frankfort plate system as the UltraGrind, allowing for standardization of plates and diamonds to speed changes between grits and reducing inventory. Aztec Products Inc. 800-331-1423.