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Conversion Table: Common Piercing Gauge Scale (all measurements are approximate, for a guide only not for official use)

Gauge Size

Inch/MM Equivalence (approximate)

12

0.081 in./ 2.057 mm

13

0.095 in. /0.095 mm

14

0.083 in./ 2.108 mm

15

0.072 in./ 1.829 mm

16

0.065 in./ 1.651 mm

17

0.058 in./ 1.473 mm

18

0.049 in./ 1.245 mm

19

0.042 in./ 1.067

20

0.035 in./ 0.889 mm



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