Similar in size to a standard credit card, this transparent gauge is marked with a range of graded lines. Each line is a specified width.
To use, position the gauge over the crack and identify which line is a similar width to the crack. Read off the width value.
| Part Number | Description | |
| E143----1 | Elcometer 143 Crack Width Ruler | |
| Range | 0.10 - 2.50mm / 0.004 - 0.100 inches | |
