The Caterpillar, Peoria, Ill., SW45 and SW60 Wheel Saws (Circle 926) are designed for fast trench cutting in hard surfaces, such as asphalt, reinforced concrete and rocky or frozen ground. The two sizes of the saws are engineered for high performance when mounted on and powered by Cat high-flow skid-steer loaders. The saws are ideal for asphalt patch cutting, road expansion joint cuts and utility trenching. Optional concrete bits are available for aggressive milling.