QLT by Marshalltown 0.375-in x 0.5-in Bronze Concrete Groover

The contractor-grade QLT bronze Fresno groover attachment attaches to your bull float to create grooves or expansion joints in your concrete project. The attachment slides easily over any magnesium bull float and tightens with two thumbscrews. The groover is made from high quality, long-wearing bronze, and finely finished to create smooth, clean grooves. The groove width and depth is 3/8" x 1/2" and the radius is 1/4".