Quickly and smoothly drill holesfor the most demanding projects for any materialswith Nitrochrome Titanium Cobalt Drill Bit! Whether you're working from your garage or in a construction site, these are extremely easy to useand will give more efficiency and guarantee to the quality of work! Perfect for hobbyist, mechanics, or machinistswho constantly works with fasteners.
EFFICIENT OPERATION: quickly and smoothly drill holes in materials
ENGRAVED VARIOUS SPECIFICATION: The titanium step drill bit sets has 29 different apertures. They can process different kinds of diameter holes, which greatly saves you a lot of trouble.
MULTI-PURPOSE: suitable for drilling of thinner stainless steel, carbon steel, aluminum plate, iron plate wood, and other materials.
ANTI-SKID DESIGN: groove design, help the electric drill clamp it more firmly, prevent sliding or falling off during rotation.
QUALITY MATERIALS:Forged from titanium coated high-speed steel. Make these titanium step drill bit sets have high hardness.