Gauge Index

Gauge O.D. in mm I.D. in mm
26 0.45 0.25
26s 0.47 0.13
25 0.50 0.28
24 0.55 0.32
23 0.64 0.35
23s 0.64 0.15
22 0.72 0.40
22s 0.72 0.20
21 0.80 0.50
20 0.90 0.60
19 1.10 0.80