TurboMax Drill Bit Set, 7 pc. Jet Point Tip . 90/140 deg. featured tip geometry enhances hole quality in irregular surfaces, thin sheet metal and reduces drill tip grab and walking for more accurate hole placements. . Ground flatted shank for easier grip with keyless and standard drill chucks . Fast penetration and reduced feed force makes them ideal for general purpose metal drilling tasks with portable drills. . Handles more curved metal pipe materials and improves hole smoothness and quality in thinner sheet metal applications 3018012SM