MARSHALLTOWN The Premier Line 833D 6-Inch by 4-3/8-Inch Heav

Made from high quality durable zinc, harder than bronze, Finely crafted to cut sharp, clean grooves, Moulded to eliminate the corners of the concrete, Dimensionally very consistent, Smooth surface allows for easier cleaning, Durable DuraSoft handle provides a soft feel, reduces fatigue and provides excellent durability, Bit size: 1/4 inch radius, 3/8 inch width, 1/2 inch depth.'