- Made of stainless steel
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| Code | Measurement | Range | Graduation | Accuracy |
| 4839-1 | bevel on end preparation | 37.5° | — | ±1° |
| pipe wall thickness | 0 – 45mm (0 – 1-3/4″) | 1mm (1/16″) | ±0.5mm | |
| internal misalignment | 0 – 35mm (0 – 1-3/8″) | 1mm (1/32″) | ±0.5mm | |
| fit-up gap | 1.6mm, 2.4mm | — | ±0.1mm | |
| crown height | 0 – 35mm (0 – 1-3/8″) | 1mm (1/32″) | ±0.5mm | |
| distance between two marking lines of socket weld | 0 – 60mm (0 – 2-3/8″) | 1mm (1/16″) | ±0.5mm | |
| fillet weld length | 0 – 30mm (0 – 1-1/4″) | 1mm (1/16″) | ±0.5mm | |
| fillet weld height | 0 – 35mm (0 – 1-3/8″) | 1mm (1/32″) | ±0.5mm |