5pcs Cobalt Coated Step Drill Bit Kit with Aluminum Case, 50 Sizes Drill Tool
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Material: High Speed Steel with Cobalt Coated This set replaces 50 individual drill sets Made by Long life high speed steel Self starting - no need for a pilot hole Cobalt coated to reduce friction and run cooler Automatically deburrs holes as you drill Includes protective padded aluminum caseSpecification - 1/4'' to 1 3/8'' Drill Bit: 10 Steps (1/4'', 3/8ā, 1/2'', 5/8'', 3/4'', 7/8'', 1'', 1 1/8'', 1 1/4'', 1 3/8'') - 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'') superb for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.
