SK215 8" x 18" Finish BladeFloat and finish your concrete slab without changing blades. Heavy duty blade is designed to provide even coverage when using ride on or walk behind power troweler machines. Each blade is made of heavy duty steel to exacting specifications for a superior blade. Designed with a hard thick steel to cut down on blade changes on the job creating a longer life and greater performance than standard blades. The wide combination blade has upturned ends with a