6mm is equal to a 2 gauge.
Yes
18 or 20 gauge
yes
18 Gauge
14
You should use a taper. You can probably find these at a piercing studio. It is important to first stretch it to a 16 gauge, and then to a 14 gauge about a month later to prevent tearing.
yes....bigger the number smaller the gauge
14g is normal for a male lip piercing, 16g is normal for a female lip piercing.
Use a taper or have a shop taper it out.
It's not recommended to pierce your tongue yourself as it can lead to complications like excessive bleeding, infection, or nerve damage. It's best to go to a professional piercer who will have the proper tools and expertise to safely perform the piercing. Typically, a 14 gauge needle is used to pierce the tongue for a standard tongue piercing.
It is normal for a lobe piercing to be 16 or 18 gauge... but it is normally 18. A 16 gauge is normally used for tragus piercings :)
Most Industrials are generally done with your choice of either a 16 gauge or a 14 gauge.