The Diamond Products CC2522H-26 is a reliable, gas powered, walk behind concrete saw that is feature rich and powerful while at the same time versatile and competitively priced. Economical screw feed raise and lower system standard or power raise and lower assembly is optional Positive gear drive to rear axle via Eaton hydrostatic transmission High strength 3/16" steel box frame with heavy bar reinforcement makes Core Cut saws the strongest in the industry.