Smooth Operator Power Trowels, available in 24-, 36-, 46-, and 48-in. diameters, feature an extra-strong cast iron spider, rotating stabilizing ring, and variable blade adjustments. A one-piece gear case with hardened worm gear and taperd roller bearings offers smooth, trouble-free operation. Trowels are equipped with a shock-mounted ring guard to reduce vibration and chatter. The Dyna-Clutch system stops blade rotation without turning off the engine and delivers precision handling. All trowels are available with choice of Honda, Briggs, Robin, and Wisconsin engines. Stone Construction Equipment Inc. 800-888-9926.