Self-centering precision-ground TURBOMAX feature point tip starts faster and eliminates walking on flat and curved surfaces, stays sharp longer, and drills faster than standard high speed steel bits. Computer designed cutting edges provide free cutting action with less heat at edges for longer life and faster drilling. Unique shoulder design provides clean exit hole. Black shank with a gold flute. For drilling plastic metal and wood. Sizes 3/16" and above have 3 flats on shank to prevent bit from slipping in chuck. Sizes 1/16" to 1/8" are packed 2 per card. All other sizes packed 1 per card.