Durable HSS design provides reliable performance for general-purpose drilling applications. Wide material compatibility - use these drills on aluminum, mild steel, cast iron, and brass. 6" overall length. They feature a 118 degree drill point with a 1/2" straight shank. Black oxide coated for a long tool life. These drills are used for metal fabrication, woodworking, plumbing, construction, maintenance and general metalworking. Supplied with case.