Inquiry:
DIN333 Center drill
DIN333 Center drill
- *Available in plain (A),Bell (B),and Radius (R) type.
- *bell type: Combined Drills and Countersinks provide a protected center that preserves the center and protects it from being deformed by rough handing.
- *High speed steel combined drills and countersinks are used for producing center holes in components or workpieces which require maching between centers.
- Product description：DIN333 Center drill
*plain tvpe: Plain Drills and Countersinks are used to machine center holes in shafts, and to do other operations where their rigid construction and drill chamfer combination can reduce machining time.
*radius type Combined Drills and Countersinks produce a reduced bearing surface and a protected center for components that require high precision close tolerance grinding between centers.
Form A 60°，w/o protecting chamfer
Dia
Dia
L1
L2
Φ
shank
Overall Length
Flute Length
0.5
3.15
20.0
0.8
0.8
3.15
20.0
1.1
1.0
3.15
31.5
1.3
1.25
3.15
31.5
1.6
1.6
4.0
35.5
2.0
2.0
5.0
40.0
2.5
2.5
6.3
45.0
3.1
3.15
8.0
50.0
3.9
4.0
10.0
56.0
5.0
5.0
12.5
63.0
6.3
6.3
16.0
71.0
8.0
8.0
20.0
80.0
10.1
10.0
25.0
100.0
12.8
12.5
31.5
125.0
16.5
Form B 60°-120°，with protecting chamfer
Dia
Dia
Dia
L1
L2
Φ
shank
drill
Overall Length
Flute Length
1.0
4.0
2.12
35.5
1.3
1.25
5.0
2.65
40.0
1.6
1.6
6.3
3.35
45.0
2.0
2.0
8.0
4.25
50.0
2.5
2.5
10.0
5.3
56.0
3.1
3.15
11.2
6.7
60.0
3.9
4.0
14.0
8.5
67.0
5.0
5.0
18.0
10.6
75.0
6.3
6.3
20.0
13.2
80.0
8.0
8.0
25.0
17.0
100.0
10.1
10.0
31.5
21.2
125.0
12.8
Form R 60°，with protecting chamfer
|
Dia |
Dia |
L1 |
L2 |
R |
|
Φ |
shank |
Overall Length |
Flute Length |
Radius |
|
1.0 |
3.15 |
31.5 |
3.0 |
2.5-3.15 |
|
1.25 |
3.15 |
31.5 |
3.35 |
3.15-4.0 |
|
1.6 |
4.0 |
35.5 |
4.25 |
4.0-5.0 |
|
2.0 |
5.0 |
40.0 |
5.3 |
5.0-6.3 |
|
2.5 |
6.3 |
45.0 |
6.7 |
6.3-8.0 |
|
3.15 |
8.0 |
50.0 |
8.5 |
8.0-10.0 |
|
4.0 |
10.0 |
56.0 |
10.6 |
10.0-12.5 |
|
5.0 |
12.5 |
63.0 |
13.2 |
12.5-16.0 |
|
6.3 |
16.0 |
71.0 |
17.0 |
16.0-20.0 |
|
8.0 |
20.0 |
80.0 |
21.2 |
20.0-25.0 |
|
10.0 |
25.0 |
100.0 |
26.5 |
25.0-31.5 |
|
12.5 |
31.5 |
125.0 |
33.5 |
31.5-40.0 |
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