石制直角尺 OS-102A
编号 No | 尺寸 Nominal size (mm) | 尺寸 Size (mm) | 精度(直角度)Accuracy(Squareness) ±(μm) | |
H×B×W×E | AA级 Class AA | A级 Class A | ||
1 | 100 | 100×63×16×16 | 2 | 4 |
2 | 160 | 160×100×20×20 | 2 | 4 |
3 | 250 | 250×160×25×25 | 2.5 | 5 |
4 | 400 | 400×250×40×30 | 3.5 | 7 |
5 | 630 | 630×400×63×50 | 4.5 | 9 |
6 | 1,000 | 1,000×630×80×80 | 6 | 12 |