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Contact Us
- Contact Person : Ms. Juliet Wong
- Company Name : Botou Jingda Tools and Measuring Instruments Co.,Ltd
- Tel : 86-317-5561573
- Fax : 86-317-8294068
- Address : Hebei,Botou City,Chezhan street
- Country/Region : China
- Zip : 062150
cast iron square ruler
Product Detailed
Related Categories:Other Measuring & Gauging Tools
Manufactured according to the standard JB/T6092-85 with the material of HT200, mainly used for the inspection and scribing of the right-angle of various parts and also used for the perpendicularity measurement of relevant surfaces of parts during the installation and maintenance of equipment.
| Type（mm） | Perpendicularity between adjacen measuring surface |
Flatness and straightness of measuring surface |
Flatness and straightness of datum surface |
||||||
| Precision grade (μm) | |||||||||
| 0 | 1 | 2 | 0 | 1 | 2 | 0 | 1 | 2 | |
| 150 × 100 | 4 | 8 | 16 | 1.5 | 2.5 | 5 | 2 | 4 | 8 |
| 300 × 200 | 6 | 11 | 22 | 2 | 4 | 7 | 3 | 6 | 11 |
| 400 × 300 | 7 | 12 | 25 | 2 | 4 | 8 | 3.5 | 7 | 12 |
| 500 × 350 | 8 | 15 | 30 | 2.5 | 5 | 10 | 4 | 8 | 15 |
| 630 × 400 | 9 | 18 |
35 |
3 | 6 | 12 | 4.5 | 9 | 18 |
| 800 × 500 | 10 | 20 | 40 | 3 | 7 | 14 | 5 | 10 | 20 |
| 1000 × 630 | 12 | 25 | 50 | 4 | 8 | 16 | 6 | 12 | 25 |
| 1250 × 800 | 15 | 30 | 60 | 5 | 10 | 20 | 8 | 15 | 30 |
| 1600 × 1000 | 18 | 38 | 70 | 6 | 12 | 24 | 10 | 18 | 35 |
| 2000 × 1250 | 22 | 46 | 80 | 8 | 15 | 30 | 12 | 22 | 40 |
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