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Product introduction:
1) Made of high quality spring steel 2) Powerful clamping ability with high precision and stability 3) Used for drilling, boring, milling, tapping, engraving operation. etc 4) Adapted for DIN6499B

|
Model |
d H7 |
D |
D1 |
D2 |
L |
L1 |
L2 |
L3 |
Collapsible capacity |
|
ER8 |
0.5-5.0 |
8 |
8.5 |
6.5 |
13.5 |
2.7 |
1.5 |
1.2 |
0.5 |
|
ER11 |
1.0-7.0 |
11 |
11.5 |
9.5 |
18 |
3.8 |
2.5 |
2 |
0.5 |
|
ER16 |
1.0-2.0 |
16 |
17 |
13.8 |
27.5 |
6.26 |
4 |
2.7 |
0.5 |
|
>2.0-10.0 |
1 |
|
ER20 |
1.0-2.5 |
20 |
21 |
17.4 |
31.5 |
6.36 |
4.8 |
2.8 |
0.5 |
|
>2.5-13.0 |
1 |
|
ER25 |
1.0-2.5 |
25 |
26 |
22 |
34 |
6.66 |
5 |
3.1 |
0.5 |
|
>2.5-16.0 |
1 |
|
ER32 |
2.0-2.5 |
32 |
33 |
29.2 |
40 |
7.16 |
5.5 |
3.6 |
0.5 |
|
>3.5-20.0 |
1 |
|
ER40 |
3.0-26.0 |
40 |
41 |
36.2 |
46 |
7.66 |
7 |
4.1 |
1 |
|
ER50 |
6.0-10.0 |
50 |
52 |
64 |
60 |
12.6 |
8.5 |
5.5 |
1 |
|
>10.0-34.0 |
2 |
Inspection of accuracy:

|
d |
L |
Run out |
|
I |
II |
|
1.0-1.6 |
6 |
0.01 |
0.015 |
|
>1.6-3.0 |
10 |
|
>3.0-6.0 |
16 |
|
>6.0-10.0 |
25 |
|
>10.0-18.0 |
40 |
0.015 |
0.02 |
|
>18.0-26.0 |
50 |
|
>26.0-30.0 |
60 |
|
>30.0-34.0 |
80 |
0.02 |
0.03 |
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