Premium Sub-Micrograin Solid Carbide Jobber Length DrillALTiN Coated2 Flute25° Helix118° Split Point Jobber Length These drill bits require rigid toolholding and workholding to be run properly and avoid breakageLetter SizesALTIN Coating: A high performance coating for drilling stainlesssteels, carbon steels, alloy steels, and cast iron. These Kodiak Cutting Tools® solid carbide jobber drills feature a 25 degree helix angle and a 118 degree split point..Y Carbide Jobber Length Drill ALTIN Coated As with all of our solid carbide tools, these drill bits are manufactured using state-of-the-art machinery, manufacturing processes and inspection techniques, making them the preferred choice of solid carbide drills for machinists wanting to produce high quality parts with maximum tool life.