MARSHALLTOWN The Premier Line 166BD 9-Inch x 6-Inch Blue Steel Edger-1/2-Inch Radius, 5/8-Inch Lip DuraSoft Handle Heavy gauge blue steel high carbon blade Sturdy steel mounting Resilient DuraSoft handle provides a soft feel, reduces fatigue, and offers excellent durability Used to produce a radius at the edge of a concrete slab to prevent the edge from chipping