ALFRA ROTABEST 40 RL-E Manual De Instrucciones página 16

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When stopping the forward motion proceed as follows:
• Switch off motor.
• Push button „Left-hand rotation".
• Switch on motor.
• Lead back the tap.
• Switch off the motor after tap is completely led back.
Left–hand rotation is only activated when corresponding button was
pushed which means that after stopping the motor automatically
the right–hand rotation is activated.
Tapping: the tap must be adjusted on the prepared boring in the workpiece.
Put down spindle, until the tap touches the surface and the process can be started.
Please comply with below chart for metric ISO thread.
BORE HOLE CHART
METRIC ISO-THREAD
Dimension
M3
M4
M5
M6
M8
M10
M12
M14
M16
M18
M20
16
Thread Pitch
drill-Ø
0,5
2,5
0,7
3,3
0,8
4,2
1
5
1,25
6,8
1,5
8,5
1,75
10,2
2
12
2
14
2,5
15,5
2,5
17,5
Speed Control
METRIC FINE THREAD
Dimension
Thread Pitch
M8x1
M10x1
M12x1
M12x1,5
M14x1
M14x1,5
M16x1
M16x1,5
M20x1
M20x1,5
Left-hand rolation
drill-Ø
1
7
1
9
1
11
1,5
10,5
1
13
1,5
12,5
1
15
1,5
14,5
1
19
1,5
18,5

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