Dewalt 6″ Inch x 22″-Inch Spline Rotary Hammer 1-Piece Core Bit. The item “Dewalt 6 Inch x 22-Inch Spline Rotary Hammer 1-Piece Core Bit DW5943″ is in sale since Wednesday, July 8, 2020. This item is in the category “Business & Industrial\Light Equipment & Tools\Drills & Hammers\Core Drills & Rigs”. The seller is “four-o-one” and is located in East Greenwich, Rhode Island. This item can be shipped to United States.