MARSHALLTOWN Stainless Steel Hand Edgers w/ Adjustable Groover are versatile tools that allow you to slide the groove along the blade so you can be specific when adding grooves to any concrete slab. The stainless steel blade is 14” x 5” and you can choose from a variety of groove depths and radiuses to best suit your needs. Each groove depth corresponds to a replaceable Groover attachment part number that comes standard with this concrete tool.