How To Work With Twist Drills, Tapping - Alfra Rotabest 130 B Rl-E Betriebsanleitung

HOW TO WORK WITH TWIST DRILLS
1. Twist drills with MT4 shank can be inserted directly into the arbor.
2. For a maximum enlargement of the stroke when using twist drills, drill chucks and tapping
attachmentsthe motor can be continuously adjusted on the slide by loosening the Allen screw.
TAPPING
With the Quick Change Tapping Adaptor, there is the possibility to tap threads from
M3 up to M 22.
Insert the Quick Change tapping Adaptor ( 1 ) in the arbor of the machine.
Pay attention to a tight fit. Subsequently mount the tap (3) in the tap collet (2).
Now insert the tap collet (2) with tap (3) in the Quick Change Tapping Adaptor (1).
Please adjust the motor to the corresponding cutting speed.
When stopping the forward motion proceed as follows:
• Switch off motor
• Set the rotary switch to the left
• Switch on motor
• Lead back the tap
• Switch off the motor after tap is completely led back
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
18
It must be ensured that the tap
is placed on the drill hole.
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
right/left-run
METRIC FINE THREAD
Dimension Thread Pitch
M8x1
M10x1
M12x1
M12x1,5
M14x1
M14x1,5
M16x1
M16x1,5
M20x1
M20x1,5
Speed Control
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