Step Drill Bit Set, 5 PCS HSS Cobalt Multiple Hole 50 Sizes Step Drill BIT Tool Set W/Aluminum Case

Description: This set replaces 50 individual drill sets. Made by Long life high speed steel. Self starting no need for a hole. Cobalt coated to reduce friction and run cooler. Automatically deburrs holes as you drill. Includes protective padded aluminum case. Specifications: 3/16'' to 7/8'' Drill Bit: 12 Steps (3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2'', 9/16'', 5/8'', 11/16'', 3/4'', 13/16'', 7/8''). 1/4'' to 3/4'' Drill Bit: 9 Steps (1/4'', 5/16'', 3/8'', 7/16'', 1/2'', 9/16'', 5/8'', 11/16'', 3/4''). 1/8'' to 1/2'' Drill Bit: 13 Steps (1/8'', 5/32'', 3/16'', 7/32'', 1/4'', 9/32'', 5/16'', 11/32'', 3/8'', 13/32'', 7/16'', 15/32'', 1/2''). 3/16'' to 1/2'' Drill Bit: 6 Steps (3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2''). Aluminum Case Dimension: 6'' x 4'' x 1 1/2'' Package Includes: 5 x Drill Bits. 1 x Aluminum Case.