welding gauge is used to measure welding operations, the scale is in millimeters.
Welding gauge.
| Measurement | Range | Division |
| Height difference | -5∼+15mm | 1 mm |
| Angle | 0°-45° | 5° |
| Length | 0-50 mm | 1 mm |
| Opening | 1-4 mm | 0.5mm |
| Thickness | 1,1.2,2.0,2.5,3.0,3.25,4.0,5.0mm |
