[1 & 8 NPS Tap]
[1 & 2 NPS Tap]
[1 1 & 4 NPS Tap]
[1 NPS Tap]
[3 & 8 NPS Tap]
[3 & 4 NPS Tap]
[1 & 4 NPS Tap]
[1 & 16 NPS Tap]
1/8" - 27 HSS American National Standard Straight Pipe right hand thread tap. 1/8" is nominal pipe size - the actual thread major diameter is 10.287mm