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Guide Post
Headed Drill Bush-standard: DIN 172 similar to ISO 4247 |
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d1 |
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short |
medium |
long |
d2 |
d3 |
L2 |
r |
tr |
tp |
Above 0.4 to 0.8 |
graded bores d1 (15 in increments of 0.1 & 0.25 mm ) 15 preferably 0.5 mm |
6 |
|
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3 |
6 |
2 |
1 |
0.01 |
0.03 |
Above 0.8 to 1.0 |
6 |
9 |
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3 |
6 |
Above 1.0 to 1.8 |
4 |
7 |
Above 1.8 to 2.6 |
5 |
8 |
Above 2.6 to 3.3 |
8 |
12 |
16 |
6 |
9 |
2.5 |
1 |
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Above 3.3 to 4.0 |
7 |
10 |
Above 4.0 to 5.0 |
8 |
11 |
Above 5.0 to 6.0 |
10 |
16 |
20 |
10 |
13 |
3 |
1.5 |
0.02 |
Above 6.0 to 8.0 |
12 |
15 |
Above 8.0 to 10.0 |
12 |
20 |
25 |
15 |
18 |
2 |
Above 10.0 to 12.0 |
18 |
22 |
4 |
2 |
Above 12.0 to 15.0 |
16 |
28 |
36 |
22 |
26 |
Above 15.0 to 18.0 |
26 |
30 |
Above 18.0 to 22.0 |
20 |
36 |
45 |
30 |
34 |
5 |
3 |
Above 22.0 to 26.0 |
35 |
39 |
0.05 |
Above 26.0 to 30.0 |
25 |
45 |
56 |
42 |
46 |
Above 30.0 to 35.0 |
48 |
52 |
5 |
3 |
0.04 |
Above 35.0 to 42.0 |
30 |
56 |
67 |
55 |
59 |
3.5 |
Above 42.0 to 48.0 |
62 |
66 |
6 |
Above 48.0 to 55.0 |
70 |
74 |
Above 55.0 to 63.0 |
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35 |
67 |
78 |
78 |
82 |
4 |
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.Material: Steel selected by manufacturer
Hardness: 740+80 HV10
How to order: Headed drill bush DIN 172 d1*l1 |
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