Drill Bit Set | M35 Cobalt Tapered Design | 4-32mm for Stainless Steel & Sheet Metal

The Rafford M35 Cobalt Step Drill Bit simplifies hole enlargement and deburring in a single, efficient tool. Its tapered design with multiple stepped diameters allows you to create perfectly round holes from 4mm up to 12mm, 20mm, or 32mm without changing bits. The cobalt construction is built for demanding work on stainless steel and sheet metal. Features and Benefits - M35 Cobalt HSS Construction - Provides extreme durability and heat resistance for prolonged drilling in tough metals without frequent sharpening. - Multi-Diameter Step Design - Enables quick, precise hole enlargement and eliminates the need for multiple drill bits, saving time and effort. - Spiral Groove & Triangle Shank - Ensures optimal chip removal for a smooth cut and provides a secure, non-slip grip in standard three-jaw chucks. - Self-Centering Tip and Polished Flutes - Starts accurately on curved surfaces and reduces friction for cleaner holes with minimal burrs. Applications - Installing electrical boxes, plumbing pipes, and conduit in metal panels - HVAC work and sheet metal fabrication for creating clean vent and duct holes - Automotive customization for enlarging existing holes in brackets or body panels