
6Pcs HSS Nano Blue Coated Step Drill Bit With Center Punch Set Hole Cutter Drilling Tool
Descriptions: 6Pcs HSS Nano Blue Coated Step Drill Bit With Center Punch Drill Set Hole Cutter Drilling Tool. Specifications: Type: Core Drill Bit; Materail: High Speed Steel; Coating: Nano Blue Coated; Size:(Total Length x Shank Dia x Shank Length) 3/16-1/2: Approx. 57mm x 6mm x 24mm; 1/8-1/2: Approx. 77mm x 6mm x 24mm; 1/4-3/4: Approx. 73mm x 9mm x 24mm; 3/16-7/8: Approx. 77mm x 9mm x 24mm; 1/4- 1-3/8: Approx. 76mm x 9mm x 24mm; Size Including: 3/16-1/2: 3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2'' 1/8-1/2: 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'' 1/4-3/4: 1/4'', 5/16'', 3/8'', 7/16'', 1/2'', 9/16'', 5/8'', 11/16'', 3/4'' 3/16-7/8: 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- 1-3/8: 1/4'', 3/8'', 1/2'', 5/8'', 3/4'', 7/8'', 1'', 1-1/8'', 1-1/4'', 1-3/8'' Features: - This is the new HSS steel large step cone drill titanium bit set hole cutter. - Whic