Bon  88-311 Cast Stainless Steel 6-Inch by 2-3/4-Inch Concrete Bullet Hand Edger, 5/8-Inch Bit Depth by 1/4-Inch Bit Width, Comfort Grip Handle Made from cast stainless steel Comfort grip handle 6-Inch by 2-1/4-Inch US Patent No.7,610,648 The preferred choice of the professional tradesman