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Granite square boxes

Granite square boxes

Granite square boxes are used for checking planeness and verticality of workpieces, and then make precision lineation.

Granite square boxes

Granite square boxes

Usage: Granite square boxes are used for checking planeness and verticality of workpieces, and then make precision lineation.

Material: granite
Standard: JJG194-92

Specification: 100x100-800x800mm or customize
Hardness of the working surface: HS70
Surface treatment: ground finish
Precision grade: 00-0
Packaging: wooden box

Specification of granite square boxes:

Specification (mm)

Parallel

Planeness

Verticality

Precision grade (um)

00

0

00

0

00

0

100×100×100

1

2

1

2

1

2

150×150×150

1.5

3

1

2

1.5

3

200×200×200

2

4

1.5

3

2

4

300×300×300

3

6

1.5

3

3

6

400×400×400

4

8

2

4

4

8

500×500×500

5

10

2.5

5

5

10

600×600×600

6

12

3

6

6

12

800×800×800

8

16

4

8

8

16