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Size Chart
Last Updated: 05/17/2016

Gauge

English Fraction

(approximate)

English
Inches
True MetricGwS Glass Metric (+-0.2mm)
183/64"
0.039"1.02 mm1mm
16 0.051"1.3 mm 1.2-1.4mm
141/16"
0.063"1.6 mm1.5 mm
12 0.082"2.06 mm 2.0 mm
10
0.102"2.6 mm2.5 mm
81/8"0.128"3.2 mm 3 mm
6 0.164" 4.1 mm4 mm
4 0.204"5.2 mm5 mm
21/4"0.250" 6.5 mm6-7 mm
1 0.289"7.3 mm7 mm
05/16" 0.325"8.3 mm8 mm
003/8"0.375"9.52 mm9mm clear
9.5 color
00013/32"0.410"10.4 mm10 mm

7/16"0.438"11.1 mm 11 mm
000015/32"
0.460"11.68 mm 12 mm

1/2"0.500" 12.7 mm13 mm

9/16"0.562"14.28 mm14 mm

19/32"
0.591"15.08 mm 15 mm

5/8"0.625"15.9 mm16 mm
43/64"
0.669"17.07 mm17 mm
11/16"0.6875"17.46 mm 18 mm

3/4"0.750"19 mm19 mm

13/16"0.8125"20.64 mm20 mm

7/8"0.875"22.22 mm22 mm

15/16"0.9375"23.81 mm 24 mm
1"1.00"25.4 mm25 color eyelet
26 mm plugs
1 1/8"1.125"28.6 mm28 mm
1 3/16"0.1875"30.16 mm30 mm
1 1/4"1.25"31.75 mm 32 mm
1 3/8"1.375"34.9 mm 34 mm

1 7/16"1.4375"36.5 mm 36 mm

1 1/2"1.5"38.1 mm38 mm

1 9/16"1.575"39.7 mm 40 mm

1 5/8"1.625"41.3 mm 42 mm

1 3/4"1.75"44.45 mm44 mm

1 7/8"1.875"47.6 mm 46 mm

2"2.00"50.8 mm51 mm
2 1/8" 2.125"53.98 mm 54 mm

2 1/4" 2.25"57.15 mm 57-58 mm

2 1/2" 2.5"63.5 mm 63 mm

2 3/4" 2.75"69.85 mm 70 mm
3"3.0"76.2 mm 76 mm
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