• The most common style of tap.
•Contains: Drills: #36, #29, #25, #21, #7, Letter F, U, 5/16", 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.• Versatile taps for use in general machine tapping or CNC tapping applications•Can be used by hand or for tapping under power.•Gold Oxide - low temperature stress relief that enhances lubricity, reduces friction and increases tap toughness.18 Pc Set Type 24-UB NC Straight Flute Plug Magnum Tap/Drill Set Use for through hole or blind hole tapping.