Featuring a direct drive, the F-series walk-behind power trowels deliver more power to the blades and feature a fully enclosed spider assembly. Available in 30-, 36-, and 46-inch diameters, the trowel has minimal wobble and side torque for a smooth, flat finish. The trowel bottom and blade pitch mechanism are fully enclosed. Arrow-Master Inc. 800-325-4151. www.arrowmaster.com