5-Piece HSS Step Drill Bit Set

5-piece high-speed steel step drill bit set in a storage case. Includes sizes 1/4"-1-3/8", 3/16"-7/8", 1/4"-3/4", 1/8"-1/2", and 3/16"-1/2". Case dimensions are approximately 15 cm x 11 cm x 4 cm (5.9" x 4.3" x 1.6").