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Square (Engineer's Square) |
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Made Generally as per IS: 21 03- 1980 Grade A Made
from good quall1y of Alloy Steel Hardened, Ground
& StabilIzed up to 300 mm. Hardness 58 Rc. Above
300 mm unhardened & Hand scraped on Main working
surfaces.
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Type
- 2 Plain & Bevelled Edge
Size In mm |
Perpendicularity
In micron |
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3 |
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3 |
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4 |
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4 |
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5 |
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10 |
Type
- 3 Plain & Bevelled Edge With Flange
Size In mm |
Perpendicularity
In micron |
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5 |
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10 |
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10 |
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15 |
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25 |
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