Step bits, unibits, and vari bits are essential tools for drilling holes of various sizes in metal, plastic, and other materials. They are designed with multiple steps that allow for quick, clean enlargements of existing holes or drilling new ones with minimal bit changes. These bits are commonly used in electrical work, HVAC, and general construction for installing conduit, wiring, or fixtures.
Many models feature high-speed steel or cobalt construction for durability and heat resistance. Some include impact-ready designs for use with impact drivers. Vari bits and step drill sets often come in multiple sizes, making them flexible for different project requirements. Proper selection of the right bit can improve efficiency and accuracy during drilling tasks.
