Ragni R425 Cement finishing trowels - Highest quality carbon steel is selected for our R425 series of Cement Trowels. Carbon Steel is lighter and more flexible than stainless steel, but harder in its composition. It is often the trowel of choice for concrete and cement work. We couple our carbon steel trowels with ergonomic high-quality soft grip 2 component handles which provides excellent knuckle clearance and comfort, and our traditional internal rivet system, is guaranteed for life. They feature a 4” wide blade profiles which reduces drag and fatigue, producing a fantastic finish.