Step Drill Bit With Straight Flute Drill round holes in most metals (steel, brass, aluminum, copper) up to 1/8" (3.2mm) thick.

Best for drilling holes in thin material, such as stainless steel, aluminum, copper, laminates, brass, or plastic.

The bits are easy to keep sharp, and the hole size is easily determined by the diameter markings that are permanently laser-etched in the flute areas.

Different sizes are available.

Straight HSS Step Drill Bit-3 Flat Shank