2020-6-15 · STEEL TROWELS. Purpose: Used after floating to produce a smooth, hard, dense slab surface. What''s available: Steel trowels look similar to hand floats, except the blades are thinner and the handles are open rather than closed. The key difference among tools is the type of steel used for the blade. The most common types are blue, stainless, and high-carbon steel ncrete Power Trowels | Ride on Trowels .. st brand makers include EDCO, Toro Stone, Whiteman, Allen, Bartell Morrison and Belle Group. Ride-On Trowels: For vast cement pours measuring more than 6,000 square feet, a riding power trowel is for all intents and purposes a need for completing the concrete before it sets.