Rent these great  finishers and get your Hawaiian project done, basements and garage floors or patching and repairing on larger jobs. The PT-46 has a diameter of 46″ (114 cm) for smaller concrete slabs and hard to reach areas where your ride-on trowel cannot go. The patented Pro-Pitch blade adjustment system provides smooth, quick pitch changes to ensure blades are at the optimal angle for a perfect finish.