FLOAT MAGIN CF-015PF 16"x3-1/2". The Manual Magnesium Float is designed to provide the best floating action on cement. It has smooth rounded corners and beveled edges that provide the perfect fitting feel. Its 3-1/2" blade helps cover a large area of large jobs. The Kraft Tool Magnesium Hand Float is durable and lightweight, making it the best tool for leveling and smoothing concrete before finishing. With a magnesium blade that is smooth enough to open holes in the surface for better evaporation, it also features a painted finish that extends blade life.