Drillco Tap Set, Straight Flute, Series: 2000, Measurement System: Imperial, 3 Piece, #2-64 Size, UNF Thread Standard, 7/16 in Thread Length, 1-3/4 in Overall Length, 3 Flutes, Right Hand Cutting Direction, Taper/Plug/Bottoming Chamfer, H2 Thread Limit, #50 Tap Drill, HSS, Bright