Gator Tool Concrete Walking Groover 3/4&rdquo;Dx 1/2&rdquo;Wx 1/4&rdquo;R Double End Pointed 8" x 8" (w/Ultra Twist Head) GatorLoy Blades are non-painted, naturally finished, "broken in", and ready for use Recommended for air entrained concrete Reduces the trapping of bleed water Harder and stronger than bronze Float and Groove at the same time!