Until a few years ago, drilling with diamond hollow drills in various materials was a profession that had to be learned, and it goes without saying that you have to gain your own experience at the beginning. We will show you how to use it correctly here in our online shop.

The Professional drilling machine is a specially developed machine for drilling materials such as glass, quartz, ceramics, precious stones of all kinds (except diamond) and solid carbide with diamond hollow drills.

The drill has a powerful 220 - 240 V permanent magnet motor and a spindle drive via a triple pulley with poly-V belt. This brings the very important advantage of almost 6 times the torque in the lower speed range (for large drilling diameters). Quill feed for sensitive work and practical drilling depth display with an adjustable stop and a precision-mounted drill spindle.

To protect your surroundings from water splashes, you should place the machine in a splash guard. To protect yourself, it is advisable to wear a water-repellent apron.

The height adjustment:

The clamping levers for height adjustment are located on the side of the machine. Levers 1, 2 and 3 must be loosened for rough adjustment. For fine adjustment, levers 1 and 2 must be open and lever 3 must be tightened. Now the fine adjustment can be made with the crank 4. However, to secure it, levers 1 and 2 must be tightened again

Preparation

Now start preparing the machine.

Various places have to be greased for this.

Important: Only use the enclosed or equivalent water pump grease

Open the cover by loosening the screw plugs 1 and 2.

Now you can lift off the cover.

Grease sealing rings

The drill spindle of the machine is drilled through so that the drills can be cooled with coolant through the spindle. Two blue Simmerrings are used for sealing. These must be greased with water pump grease from time to time and replaced if there is a leak. However, you should grease the seals more often if you use them frequently. Please use the grease gun for this. You can use the fat applied here e.g. Apply with a cotton swab, for example.

Grease the water rod

Now insert the water rod through the lid. The water stick (see picture) is only greased in the upper third. You can distribute the fat here with your thumb and forefinger. Now put the lid including the water stick back on the machine. Hand-tighten the two mounting screws.

Attach water hose

Now attach the water hose (1) to the water rod (2). To do this, unscrew the small union nut (3) and guide the hose through the nut. Then put the hose on the water rod and fasten it with the union nut (3).

Flooding stop

(only for machines from 03.2022)

Slide the Flooding Stop (4) over the Water Rod (2) as shown in the picture on the left.

Note that the hose (1) is enclosed in the middle of the flooding stop.

Now fix the flooding stop with the fastening knob (5).

For info:
It may be necessary to correct the fit upwards after inserting the diamond drill with ejector needle.

establish a water supply

The flushing pressure of the coolant should be at least 3.5 bar (house connection) so that the drilling mud is flushed out.

To do this, screw the water connection onto your fitting.

If you do not have a water connection at your workplace, you can also use our water pressure tank:

Diamond drill

Our drills are always supplied with an ejector needle. During the drilling process, this ejector needle is pushed back and when it is driven out of the hole, it is pressed down again by the stop on the water rod and thus ejects the drill plug. The diamond hollow drills are soldered into a holder. This mount is called type "F" and has a 4x0.5 mm thread at the rear end. The ejector is inserted into the holder from behind and should protrude approx. 1mm over the edge of the drill. The drill is screwed into the machine together with the ejector needle and tightened hand-tight or slightly with pliers. (images similar)

Now slide the water rod all the way down until it touches the ejector needle. You can now tighten the union nut 1 slightly with a wrench.

Important: The water rod is cooled by the water flowing through it at the friction points of the Simmerrings. To avoid damage to the water rod and Simmerrings, NEVER operate the drill without water. For dry drilling, the water rod must be removed.

The machine is now ready to carry out various drilling jobs. There are different drilling options.

• Pierce

• Drilling

• Ball drilling

Different preparations must be made for these species. First we set up the machine for piercing. The problem here is that the drill hole breaks out when drilling through from one side. That's why we're drilling here from two sides.

The counterpart

So that the drill channels also meet exactly, we use counterparts here. These should ensure that we get a continuous hole. The diameter of the counterparts must correspond to the diameter of the drill. The counterparts are inserted into the metal insert of the magnetic base and lightly tightened with pliers. Now the counterpart must be aligned exactly opposite the diamond drill. This is achieved by positioning the drill slightly above the counterpart and using light taps with a rubber mallet to move the magnetic base so that you no longer feel a step (see picture). In order to avoid the drill hitting the counterpart, we now set the stop. The fence with depth indicator is on the left of the machine.

As an aid we use either a piece of solid paper (0.15mm thick) or a thin metal sheet. We clamp this between the counterpart and the drill and set the stop to zero. Now first turn on the water and press the main switch of the machine. Some water should now flow through the drill, but the ejector needle is blocking full water pressure. This only increases when the ejector needle is pushed back by the drilling process. New drills should be sharpened the first time. To do this, drill 2-3 times in the enclosed sharpening stone.

Here we go !

Now take your first part to be drilled. Here in the example we take a pebble. This is now to be drilled from two sides. To do this, position the stone under the drill by simply holding it with your hand.

Drill a hole in the stone at the desired location, applying slight pressure. In order to prevent the edge of the drill from breaking off when turning, this should not be deeper than the shank length of the counterpart.

Now you can turn the stone over to center it on the counterpart. Now drill the second hole in the stone again under slight pressure. To flush out the bore, you should often move the drill up out of the borehole to avoid jamming.

Repeat this process until you have completely pierced the stone. The stop should now also prevent the drill from hitting the counterpart. We filmed this drilling process and you can view it in our information center.

drill balls

Assuming that the machine is still set up centrically in relation to the counterpart, you must first exchange the metal insert for the plastic insert with funnel.

Different plastic inserts can be offered depending on the ball diameter. Now put the ball in the funnel. The funnel ensures that the ball is centered under the drill. Now drill this ball. If it is to be drilled through, again drill only as deep as the current shank length of the mating piece to be used.

After you have drilled the ball, replace the plastic insert with the metal insert with counterpart. Now you can pierce the ball just like in the example with the pebble by turning it over.

If you only want to drill a hole, replace the metal insert with the "flat" plastic insert. This also protects your drilling material from damage.

We hope the guide has helped you get started.

Feel free to watch our videos.

If you still have problems, just give us a call or write to us.

Water Guard:

The water monitor lights up and you hear a beep.

Immediately switch off the machine and disconnect it from the power supply.
Remove the cover.
Remove water with a cloth.
If necessary, turn the machine upside down to dry (see illustration).
Check the machine for moisture.
Check the shaft seals and replace if necessary.
Check the water stick for wear and replace if necessary.

For further questions contact customer service: Tel.: 0049 6781 338 93