Syringe size really does matter

[GREENMACHINE]

Needle....Nominal O.D.
Gauge.....mm........inches.
10..........3.404.....0.1340
11..........3.048.....0.1200
12..........2.769.....0.1090
13..........2.413.....0.0950
14..........2.108.....0.0830
15..........1.829.....0.0720
16..........1.651.....0.0650
17..........1.473.....0.0580
18..........1.270.....0.0500
19..........1.067.....0.0420
20..........0.902.....0.0355
21..........0.813.....0.0320
22..........0.711.....0.0280
22s.........0.711.....0.0280
23..........0.635.....0.0250
24..........0.559.....0.0220
25..........0.508.....0.0200
25s.........0.508.....0.0200
26..........0.457.....0.0180
26s.........0.467.....0.0184
27..........0.406.....0.0160
28..........0.356.....0.0140
29..........0.330.....0.0130
30..........0.305.....0.0120
31..........0.254.....0.0100
32..........0.229.....0.0090
33..........0.203.....0.0080
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