Magnetic square box use method and material, with cast iron square box is very close, the difference is that magnetic square box of V groove part and the bottom have magnetic force.it makes measured workpiece can be firmly fixed in the square box, easy to use; At the same time greatly reduced because of the instability, or operation process of negligence, make workpiece slipped and hurt and working personnel situation.
Type (mm) | Flate ness of working surface | Perpendicularity and parallelism of working surface, the parallelism of dovetall slot to the bottom plane and the side plane | ||||
Precision grade (μm) | ||||||
1 | 2 | 3 | 1 | 2 | 3 | |
100 | 3.5 | 7 | 15 | 7 | 15 | 30 |
150 | 4 | 9 | 17 | 8 | 18 | 35 |
200 | 4.5 | 10 | 20 | 9 | 20 | 40 |
250 | 5 | 11 | 22 | 10 | 22 | 45 |
300 | 12 | 25 | 25 | 50 | ||
350 | 13 | 27 | 27 | 55 | ||
400 | 15 | 30 | 30 | 60 | ||
500 | 35 | 70 | ||||
600 | 40 | 80 | ||||
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