Winning Bore Cobalt Step Drill 4-30mm Titanium Coating CSD-3TR 1 piece

Catalogue number: CSD-3TR Features: *Spiral grooves for improved sharpness. *Unique cutting blade configuration provides outstanding performance. *One tool can drill holes of different diameters. *Hole drilling is accurate and stable. *Multipurpose use including deburring, widening holes, and chamfering. *No center punch required. Applications: *Iron 2mm or less, stainless steel 1.6mm or less, aluminum, copper, plywood, plastic, etc. *Electrical and electrical installation work. *Automobile repair, sheet metal. *Hobbies, DIY, etc. Specifications: ●Step width (mm): 5.5 ●Number of steps (steps): 14 ●Number of blades (pieces): 2 ●Shank shape: Hexagonal shaft (6.35mm) ●Shank diameter (mm): 6.35 ●Drilling dimensions (φ): 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 ●Total length (mm): 100 ●Surface treatment: Titanium coating ●Drilling dimensions (φmm): 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 Material/Finish: ●Cobalt high speed steel Set contents/Accessories: ●None