21 Piece High Speed Steel Split Point Black Oxide Drill Bit Set. Sizes 1/16" - 3/8" x 64ths

Sizes: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64" and 3/8"

Split point jobber drills are manufactured to National Aerospace Standard 907, these drills are ideal for portable or machine drilling of low tensile strength alloy materials. They have a black oxide surface treatment that is abrasion resistant, reduces chip welding and improves chip flow. The 135 degree split point is self-centering and reduces thrust. Sizes smaller than 1/16 have the 118 standard point.