Kraft Tool Co.® Step-Saver® CF010 6" x 0.5"x 1" Bull Nose Vertical Groover 6 per Case. Cut the perfect control joints on steps every time with this unique tool. This patented tool (U.S. Patent #D-333,600) is easy to use and saves time while increasing the quality of your work. Forms both horizontal and vertical control joints into the face of slabs, curbs, and steps. A strong ductile iron blade holds up to the rigors of concrete work. The 6" long blade creates a 1/2" wide and 1" deep groove. Work the groover on top of the step as with most applications. Then simply work the groover between the form and the concrete at the front of steps for a perfect joint every time. A must-have tool for every concrete finisher. Ideal for parking curbs, step faces, step corners, control joints, curbs, gutters, stadium risers, and when exposed aggregate is needed. A 6" smooth wood handle completes the tool.