Gauge Size
Most earlobe piercings are made with a 20G needle, as are some nose piercings. An 18G needle can be used for earlobe piercings, nose piercings, as well as some cartilage piercings (e.g. forward helix). … A 16G needle is used for most cartilage piercings, including the tragus, helix, rook, conch and daith.