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Spec(mm）

Flatness of working surface

Parallelism between V slot and bottom surface

Parallelism between V slot and side surface

Symmetry between V slot&side surface

Suqareness between V slot & end surface

Squareness between V slot & bottom surface

Height difference between a matched pair

Precision grade（μｍ）

0

1

0

1

0

1

0

1

0

1

0

1

0

1

40*90°

1

2

3

6

3

6

5

10

5

5

3

6

4

6

63*90°

2

3

4

8

4

8

8

16

8

8

4

8

5

10

100*90°

2

4

4

8

4

8

8

16

8

8

4

8

5

10

160*90°

2.5

5

5

10

5

10

10

20

10

10

5

10

6

12