| ? Widely Used: The ideal stepped drill bit for cutting holes in a variety of materials, including steel, brass, wood, plastic, fine iron, aluminum alloy, insulation board, foil. PVC, etc. ? Convenient: including 3-piece pitch drills, can drill holes of different diameters, open and ream, deburr and drill precisely, different styles can meet the needs. ? Easy to use: The drill has a laser scale which can provide a clear diameter, simple to use. ? Special design: the step drill bit with X-shaped opening design, the drill bit can effectively reduce the bit slippage, give you faster and smoother cutting. ? Convenient: The step drill can be used with hand tool and other equipment, easy to install … | |