Concrete Finishing Trowels. Concrete Finishing Trowels has guaranteed NO-TURN handles, the blade is crossed ground for a perfect feel, lightweight aluminum mounting. oversize toe-rivet and Proform handle. Considered the best concrete trowel by concrete finishers for finishing concrete. First troweling should be a large size to spread the blade pressure over a wider area, this reduces false setting of allowing the concrete to cure slowly. Second troweling should be with a smaller size to compact and increase the density of the concrete finish surface.