Working Speed - Westfalia 28 31 19 Bedienungsanleitung

Working Speed

Always observe the right speed for the job. The working speed is subject to the
drill bit diameter and the material to be drilled.
The below mentioned values are only suggested guideline and show the working
speed for different materials.
Drill Cast
Ø
Iron
-1
in mm
min
3 2450
4 1870
5 1870
6 1330
7 1330
8 1330
9 790
10 790
11 790
12 500
13 500
14 500
16 500
Generally, when drilling in soft material the speed should be higher and when
drilling in hard materials the speed should be lower.
Factors which determine the speed for drilling are: the kind of material that has to
be drilled, the size and the depth of the hole and the quality of cut.
Working Speed
Steel Iron
-1 -1
min min
2450 2450
1330 2450
1330 1330
790 1330
790 1330
790 790
500 790
500 790
500 790
500 500
500 500
500 500
500 500
Soft- Hard-
wood wood
-1 -1
min min
2450 2450
2450 2450
2450 2450
1870 1870
1870 1870
1870 1870
1330 1330
1330 1330
790 790
790 790
790 500
790 500
790 500
26
PVC Alum.
-1 -1
min min
2450 -
2450 -
2450 -
1870 -
1870 -
1870 -
1330 2450
1330 2450
790 2450
790 2450
- 2450
- 1870
- 1870
Brass
-1
min
-
-
-
-
-
-
2450
2450
2450
1870
1870
1870
1330