[1 & 2 13NC Size Plug]
[3 & 8 16NC Size Bottom]
[4 40NC Size Taper]
[1 & 4 20NC Size Plug]
[3 & 8 16NC Size Plug]
[6 32NC Size Plug]
[4 40NC Size Bottom]
[1 & 4 20NC Size Bottom]
[4 40NC Size Plug]
[6 32NC Size Bottom]
8-32NC H3 3 Flute HSS Bottom Tap Bottom: 1-2 Thread Chamfer