Create holes in a range of sizes without having to swap out bits. Shaped like a cone, these bits have steps of increasing diameter marked along the cutting head. As the drill bit is pushed into a piece of sheet metal or other thin material, each step widens the hole.
General Purpose High Speed Steel
Made of the most commonly used drill material for general purpose drilling, these high speed steel step drills are compatible with a range of materials, including soft steels, carbon steels, wood, plastic, and nonferrous metals such as aluminum, brass, bronze, and copper.
Heavy Duty Cobalt Steel
For demanding drilling applications, these cobalt steel step drills are harder than high speed steel bits and are more wear resistant at higher speeds. They are suitable for drilling into tough materials such as hard steels, stainless steel, titanium alloys, and nickel alloys.
These sets contain step drills in various sizes for creating a range of differently sized holes.