|
Made from alloy steel, hardened , tempered, ground & lapped.
When it
is placed against a well illuminated background on the surface under examination,
any white light visible shows the deviation in flatness.
| Length mm | Width
mm | Thickness mm | Flatness
Tolerance mm | Net Weight
(Kgs) | | 50 | 30 | 5
| .002 | 0.10 |
| 75 | 30 | 5 | .002 | 0.13 |
| 100 | 30 | 5 | .003 | 0.15 |
| 150 | 30 | 5 | .003 | 0.20 |
| 200 | 35 | 8 | .003 | 0.35 |
| 250 | 35 | 8 | .003 | ---- |
| 300 | 40 | 10 | .003 | ---- |
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