Quote Originally Posted by Gearphyr View Post
Diameter AND taper are the same. The only difference is they're supposed to have a subtle screw shape to them in the taper.

My second question is.. wtf does that do?? More pigment implantation in shallow passes?
Diameter and taper are not the same. Taper is the angle + length of the needle tip only. Diameter or gauge is the radius x2 of the stainless steel filament to craft the needle from.