Allegiance® Tap and Drill Set, 18 Piece, Drill Sizes: #33, #29, #25, #21, #3, I, Q, 25/64", & 29/64", Tap Sizes: #6-40, #8-36, #10-24, #10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-40, 1/2-20, Fine Pitch, Material: High Speed Steel, Includes: Huot Index, Features: Sets Match 9 Taps with Correct Tap Drill, Jobber Length Drills are Polished Flute Ground from the Solid