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T-slot cast iron square box
T-slot cast iron square box
Supplier Info
[China Supplier]
Contact Person : Ms. Cao Yan
Tel : 86-0317-8305554
Fax : 86-0317-8288689
Product Detail
made by the standard of JB/T3411.56-99.The material is HT200.It is used in testing the parallelism and verticality of parts.

made by the standard of JB/T3411.56-99.The material is HT200.It is used in  testing the parallelism and verticality of parts and ruling. The universal square box is used in testing or marking out for angle-free of precision workpiece.

Type(mm)

Flatness of working surface

The perpendicularity and parallelism of working surfaces.the paralellism of dovetail slot to the bottom plane and the side plane.

Precision grade (μm)

1st grade

2nd grade

3rd grade

1st grade

2nd grade

3rd grade

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

T-slot cast iron square box

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