MARSHALLTOWN Chicago Walking Groovers, 10x10 Inch head, 3/8 Inch Radius, 1/2 Inch Groove, Made In The USA, CG103812W

Constructed with heavy-gauge stainless steel for durability | Welded capped ends ensure a smooth finish to concrete joints | The 10x10 Inch square shape ensures that the groove has a uniform depth and width throughout the slab, making it easier to maintain control of cracking as the concrete cures. | Comes with a removeable and replaceable Bull Float Bracket for use with other concrete tools and accessories | The 1/2 Inch groove depth is ideal for most applications as it provides enough depth to guide cracks while still maintaining the structural integrity of the concrete slab.