Drill Bit and Tap Set, Number of Pieces 18, Tap Type Hand Tap, Drill Bit Material High Speed Steel, Drill Bit Finish Bright (Uncoated), Drill Bit Dia. Included #21, #25, #29, #36, #7, 27/64 in, 5/16 in, F, U, Measurement System Fractional Inch, Drill...