Irwin 12 in Aircraft Drill Bit

IRWIN 1/2-Inch By 12-Inch Black Oxide Aircraft Twist Drill Bit

IRWIN Single Black And Gold High-Speed Steel Drill Bit, 7/16"

IRWIN 3/8 By 12-Inch Black Oxide Drill Bit

IRWIN Single Black And Gold High-Speed Steel Drill Bit, 5/16"

IRWIN 1/4 By 12-Inch Drill Bit 135X

IRWIN Single Black Oxide High-Speed Steel Drill Bit, 3/16" X 12"

IRWIN - Drl 1/8 A12 12" 135' Blk Ox Pouched