Irwin 73312 3/16" Turbomax HSS Straight Shank Jobber Length Drill Bit 2/Card (5 Pack)

High performance metal drilling for portable drill users, works well on curved surfaces. Revolutionary tip design stays sharper longer and drills up to 10x faster than other leading drill bits. High speed steel features a black body and gold flute. Self-centering TURBOMAX tip for clean entry and fast starts; stays sharp longer. Three flatted shank on 3/16" and above for better chuck grip.