DIY Crafts 6pcs HSS Cone Reduced Shank Drill Bit Set Step Drill Bits 6pcs HSS Cone Reduced Shank
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6pcs HSS Cone Reduced Shank Drill Bit Set Step Drill Bits with Saw Drills Set Specification:Material: High Speed SteelSurface treatment: Titanium PlatingSaw drill diameter: 3mm,6mm,8mmStep Drill Sizes:4-12mm (5 Steps: 4, 6, 8, 10, 12mm)4-20mm (9 Steps: 4, 6, 8, 10, 12, 14, 16, 18, 20mm)4-32mm (15 Steps: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm)