Expand the use of your fresno by turning it into a groover! This bronze groover attachment makes your fresno into a long-handled groover by simply turning the two thumbscrews. The groover features the popular size of 1/4" radius with 3/4" but depth. The polished bronze groover cuts through concrete with ease. The durable material provides a long life for the tool. Attach multiple groovers to create parallel grooves. 1/4" radius. Fits on 5" fresnos. Proudly made in the USA.