Correctly hardened and spring tempered, EC Class 1 Accuracy engineer's steel rules: 150mm, 300mm and 500mm
Non reflective black surface.
- 150mm x 13mm x 0.5mm
- 300mm x 13mm x 0.5mm
- 500mm x 20mm x 0.5mm
Clear, easy to read full mm graduations on both edges, plain back.
Note: will come protected by oil.