Steel Parallel are made from high quality steel. These steel parallels are available in hardened and precision ground finish.
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Standard sizes and accuracy of Luthra Steel Parallel As per IS-4241:1967, Grade 1:
| Sizes(mm) LxBxH |
Accuracy in Microns um Straightness Parallelism |
| 100 X 10 X 5 | +/-1.25 +/-1.25 |
| 150 X 50 X 25 | +/- 2.5 +/- 2.5 |
| 150 X 80 X 40 | +/- 2.5 +/- 2.5 |
| 200 X 35 X 20 | +/-4.0 +/-4.0 |
| 250 X45 X 25 | +/- 4.0 +/-4.0 |
| 250 X 60 X 30 | +/-4.0 +/-4.0 |
| 300 X 60 X 30 | +/- 5.0 +/- 5.0 |
Parallel Granite are made from good quality black granite. These Parallel Granite are precision lapped to achieve desired accuracy.
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Standard sizes and accuracy of Luthra ParallelsGranite:
| Sizes(mm) LxBxH |
Accuracy in Microns um Straightness Parallelism |
| 100 X 10 X 5 | +/-1.25 +/-1.25 |
| 150 X 50 X 25 | +/- 2.5 +/- 2.5 |
| 150 X 80 X 40 | +/- 2.5 +/- 2.5 |
| 200 X 35 X 20 | +/-4.0 +/-4.0 |
| 250 X45 X 25 | +/- 4.0 +/-4.0 |
| 250 X 60 X 30 | +/-4.0 +/-4.0 |
| 300 X 60 X 30 | +/- 5.0 +/- 5.0 |