Irwin Turbomax High Speed Steel Straight Shank Jobber Length Drill Bits 5/16"

Turbomax High Speed Steel Straight Shank Jobber Length Drill Bits Features:
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