What is a step drill? A step drill, also known as stepped drill bit, step drill bit or step bit, is used for drilling a hole or enlarging an existing hole in thin sheet metal. Not only drilling, a step drill also can chamfer and deburr the cutting edge of workpiece by using the bevel of the next step.
3keego Annular Cutters are composed of two types, High-Speed Steel Annular Cutter (HSS) and Tungsten Carbide Tipped Annular Cutter (TCT). Our Annular Cutters are the best to drill holes on thick metal materials and large diameter of holes.