Irwin Turbomax Drill Bit. Irwin Turbomax Drill Bit.

Self-centering jet point tip on sizes 1/8" and larger, starts fast and does not walk or skate. 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. Sizes 3/16" and above have 3 flats on shank to prevent bit from slipping in chuck. Jobbers length. Sizes 1/16" to 1/8" are packed 2 per card. All other sizes packed 1 per card.