toolant M35 Cobalt Four Spiral Flute Step Drill Bit for Metal

M35 COBALT HSS STEP DRILL – Prefect for Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets. ALUMINUM TITANIUM NITRITE COATING – With 35 Gigapascal(GPa) Nano Hardness harder materials can be cut and higher cutting speeds can be achieved. Feels like a hot knife through butter! FOUR SPIRAL FLUTE – Four cutting blades design guarantees a faster and smoother cutting, allows swarf escape easily.