How many kinds of tattoo needles are there?

The smallest nozzle is the three needle nozzle, which can be used for both one and three needles

Then you can have a 5, 7, 9 general purpose nozzle and that's it

Then you can have a 14 needle nozzle

The above nozzles are the thread cutting nozzles, so just have two of each, and I mean stainless steel

The smallest row of needles is the X5, which is seldom used, and the smallest part of the row is a round 7 or a round 9

Now the X7, which is always two nozzles, and the X15, which doesn't make any sense, just go for the big rows.

The X7 is the next one, so always have two of those

Two of the X9

The X15 doesn't make a lot of sense, so why don't we just go for the big ones, the X23, the X39, and those are for the larger areas, so one of each is fine, and you don't have disposable tips for the big rows, so always have a sterilizing kit on hand.