7.348
Probably 19 gauge, which is 1.067 mm
For wire gauge, 1.25 mm diameter wire is closest to 16 gauge (AWG). See related link.
.953 mm (USG)
There are various standards. Below are two examples. 32 gauge American Standard (Brown & Sharpe) = 0.00795 inches = 0.202 mm. 32 gauge British Standard (Imperial) = 0.0108 inches = 0.274 mm.
4.37 mm
Probably 19 gauge, which is 1.067 mm
1 mm = 4/100 inches
12 gauge is thicker than 14 gauge.
1/2 inch is 12.7mm
19 gauge steel is 1.11 mm thick and 20 gauge is .953 mm thick.
Indian Railways uses four gauges: 1. 1,676 mm (5 ft 6 in) Broad Gauge (BG), which is also called Indian gauge, 2. 1,000 mm (3 ft 3 3⁄8 in) metre gauge (MG), 3. 762 mm (2 ft 6 in) Narrow Gauge (NG), and 4. 610 mm (2 ft) Narrow Gauge. Source: - TravelKhana.com
.953 mm (USG)
10 gauge: 3.57 mm11 gauge: 3.18 mm
1 gauge is 1/1000 of an inch or 1mil (not to be mistaken with mm). 1200ga is roughly 2.5 mm
A little over 1".
I assume that you are speaking about firearms in general and shotguns in particular. 24 guage is almost unknown in the United States and marginally popular in Europe. As usually configured it is .57 calibre English and 14.7mm metric. Once a popular small game load.
There are various standards. Below are two examples. 32 gauge American Standard (Brown & Sharpe) = 0.00795 inches = 0.202 mm. 32 gauge British Standard (Imperial) = 0.0108 inches = 0.274 mm.