Versatile and Strong Drills
Drill America Cobalt Screw Machine Drills are are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.
They are manufactured to Aerospace Standard 907 with a 135 degree split point is self-centering and reduces thrust. Sizes smaller than 1/16 and larger than 1/2 have the 118 degree standard point.