Plug Tap & Drill Set Features smaller drill diameters to create more percentage of thread.
Drills: #36, #29, #25, #21, #7, F, 5/16, U, 27/64
Taps: 6-32, 8-32, 10-24, 10-32, 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13
