Thomas C. Wilson Tube Tools
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TUBE CLEANING

REFERENCE CHART

Tube ID Smart Tube

Find your tube Outer Diameter and Gauge or tube wall to determine tube Inner Diameter.

GA 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Wall: .340 .300 .284 .259 .238 .220 .230

.180

.156 .148 .134 .120 .109 .095 .083 .072 .065 .058 .049 .042 .035 .032 .028 .025 .022
OD (Inch) Tube ID (Inner Diameter) In Decimal Inches
3/8                 .045 .079 .107 .135 .175 .185 .209 .231 .245 .259 .277 .291 .305 .311 .319 .312 .331
1/2         .024 .060 .094 .140 .170 .204 .232 .260 .282 .310 .334 .356 .370 .384 .402 .416 .430 .436 .444 .450 .456
5/8   .025 .057 .107 .149 .185 .219 .265 .295 .329 .357 .385 .407 .435 .459 .481 .495 .509 .527 .541 .555 .561 .569 .575 .581
3/4 .070 .150 .182 .232 .274 .310 .344 .390 .420 .454 .482 .510 .532 .560 .584 .606 .620 .634 .652 .666 .680 .686 .694 .700 .706
7/8 .195 .275 .307 .357 .399 .435 .469 .515 .545 .579 .607 .635 .657 .685 .709 .731 .745 .759 .777 .791 .805 .811 .819 .825 .831
1 .320 .400 .432 .482 .524 .560 .594 .640 .670 .704 .732 .760 .782 .810 .834 .854 .870 .884 .902 .916 .930 .936 .944 .950 .956
1 1/4 .570 .650 .682 .732 .774 .810 .844 .890 .920 .954 .982 1.010 1.032 1.060 1.084 1.106 1.120 1.134 1.152 1.166 1.180        
1 1/2 .820 .900 .932 .982 1.024 1.060 1.094 1.140 1.170 1.204 1.232 1.260 1.282 1.310 1.334 1.356 1.370 1.384 1.402 1.426 1.430        
2 1.320 1.400 1.432 1.482 1.524 1.560 1.594 1.640 1.670 1.704 1.732 1.760 1.782 1.810 1.834 1.856 1.870 1.884 1.902 1.916 1.930        
2 1/2 1.820 1.900 1.932 1.982 2.024 2.060 2.094 2.140 2.170 2.204 2.232 2.260 2.282 2.310 2.334 2.356 2.370 2.384 2.402 2.416 2.430        
3 2.230 2.400 2.432 2.482 2.524 2.560 2.594 2.640 2.670 2.704 2.732 2.760 2.782 2.810 2.834 2.856 2.870 2.884 2.902 2.916 2.930        
4 3.320 3.400 3.432 3.482 3.524 3.560 3.594 3.640 3.670 3.704 3.732 3.760 3.782 3.810 3.834 3.856 3.870 3.884 3.902 3.916 3.930