Roman Carbide DC1821 1/2-Inch Shank Jig Set, 5-Piece 5/16-Inch Straight Bit (Carbide Tipped) 3/8-Inch straight bit (carbide tipped) 1/2-Inch dovetail 14 Degree bit (carbide tipped)) 3/4-Inch dovetail 7 degrees bit (carbide tipped) 5/8-Inch dovetail 7 Degree bit (carbide tipped)