This set is made of high-quality bearing steel, with a titanium-plated surface, anti-oxidation, no rust, and wear-resistant for a long service life.
The most commonly used drill bit size, lightweight and small, takes up no space, can be stored in your toolbox and used anytime, anywhere, which makes it convenient and quick to use.
How it works:
• Connect the drill bit to the electric drill
• Use other tools to measure the required hole diameter.
• Then select the corresponding size of the step drill bit
• Properly install the step drill bit onto the electric drill and finally aim at the target hole position, which is perpendicular to the workpiece, then start drilling to the required size.
