The 401 Basic 7 Piece Bit Set is made up of Whiteside's most popular woodworking bits in a 1/2" shank. The set is protected in a durable plastic case and contains a 1/4" Straight, 1/2" Straight, 3/8" radius Roundover, 3/8" x 1/2" Rabbet, 3/8" radius Cove, 45° Chamfer, and 1/2" Flush Trim.