4.6
Drill depth stop
Use the drilling depth stop when drilling several holes of the same depth.
Loosen the locking screw and turn the graduated collar until the required drilling depth
matches with the indicator.
Re-tighten the locking screw.
4.7
Automatic spindle sleeve feed
The drilling depth stop is adjustable in the range of 0-95 mm. After reaching the set drilling
depth, the feed is automatically switched off and returned to its initial position by the spring
force of the return spring.
Recommended speeds in connection with the automatic quill feed.
4.8
Disassembly, assembly of drill chucks and drill bits
The drill chuck and the taper mandrel are loosened from the drill spindle by means of a drill
drift.
WARNING!
Only disassemble the drill chuck if the drilling machine is disconnected from the
electrical supply.
Switch off the drilling machine on the master switch or disconnect the mains plug.
Move the drill sleeve down.
Turn the drilling spindle until the openings of the sleeve and of the drilling spindle are super-
imposed.
Loosen the taper mandrel of the drill chuck with the help of a drill drift.
4.9
Cooling
The friction generated during rotation can cause the edge of the tool to become very hot.
The tool should be cooled during the drilling process. Cooling the tool with a suitable
cooling lubricant ensures better working results and a longer edge life of the tools.
This is best realised by a separate cooling equipment. If there is no cooling equipment included
in the delivery volume, you can cool by means of a spray gun or a washing bottle.
CAUTION!
Danger of injury due to brushes getting caught or pulled in.
Use a spray gun or a washing bottle for cooling.
INFORMATION
Use a water-soluble and non-pollutant emulsion as a cooling agent.This can be acquired from
authorised distributors.
Make sure that the cooling agent is being collected.
Respect the environment when disposing of lubricants and coolants.
Follow the manufacturer’s disposal instructions.
Drill diameter [ mm ]
Ø 22
Ø 20
Ø 18
Ø 16 - 12
Ø 6 - 12
Spindle speed [ 1/min ]
120
250
330
400
500
530
Drill diameter [ mm ]
Ø 6
Ø 5
Ø 4
Ø 3
Ø 2
Spindle speed [ 1/min ]
900
1000
1300
1400
1800
3000
25
