[inkmunky]

sorry if i sound like a d**khead but both of you are new to the board and don't have links to your work in your sig and you're asking technical questions which could easily be searched for and have been discussed before.

That being said, certain needles have their purposes to an extent, and if you're apprenticing your mentor should be able to guide you and if you are tattooing then please lets see some work before answering any further.