6mm is equal to a 2 gauge.
Yes
14 gauge is bigger, the lower the gauge size, the bigger it is
18 or 20 gauge
yes
14
18 Gauge
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.
14g is normal for a male lip piercing, 16g is normal for a female lip piercing.
yes....bigger the number smaller the gauge
For a standard nostril piercing, 18 g.
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.