HSS Parabolic Flute Screw Machine Drills, Fraction
Parabolic Flute Screw Machine (Stub Length) Drills. Parabolic drills are for hole drilling at higher feed rates in aluminum alloys and other low to medium tensile strength materials. Made in USA. Sizes smaller than 1/16” or #52, and larger than 1/2” have the 118° standard point.