Steelex D3655 Forstner Bit Set in Case, 7-Piece 1/4-Inch Diameter, 3/8-Inch Diameter, 1/2-Inch Diameter 5/8-Inch diameter, 3/4-Inch diameter 7/8-Inch diameter, 1-Inch diameter Approximately 3-3/4-Inch long See-through protective case included