Features:
1.This step drill set performs well in heat, corrosion and rust resistance.
2. Premium HSS Material: High-speed steel construction for longer cutting edge life even at extreme temperatures.
3.Unique step structure, a drill can punch out a variety diameters of holes.
4.Does not need center punch to assist it, compared with ordinary hemp flower drill, it is stabler and difficult to be broken.
5.It is suitable for being installed on the pistol drill and bench drill, applicable for punching on these harder workpieces, such as stainless steel, carbon steel, aluminum plate, iron plate, etc.