Model Number: GMA030 Brand Name: GOLDMOON Key Specifications/Special Features: Step drills, HSS M35 material, 5% cobalt, amber finishSize:1/4'' to 1 3/8'': 10 Steps (1/4'', 3/8”, 1/2'', 5/8'', 3/4'', 7/8'', 1'', 1 1/8'', 1 1/4'', 1 3/8'').3/16'' to 7/8'': 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'': 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'': 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'': 6 Steps (3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2'').

Aluminum Case