The large flute on JK HSS Straight Shank Jobber Drills facilitates drilling deeper holes. This drill is used to drill through heavy metals like cast iron and stainless steel with ease. These drills are widely used in the automotive, machine tool, and VMC machine shops sectors. They may be used on mild steel, casting, forging, alloy steels, plastic, wood, and any other ferrous and non-ferrous materials.