Knowledge Base / FAQ

Question:

My AKBU 35 PMQ suddenly won't start. What could be the reason?

Apart from the usual components in question, such as the motor and electronics, a sudden failure of the machine may be due to an incorrectly plugged connection cable. Please check the connection cable.

Question:

Are FEIN core drills “Made in Germany”?Are FEIN core drills “Made in Germany”?

The vertical range of manufacture in Germany is approx. 80%.
The majority of our core drilling machines therefore have the label “Made in Germany”.
Individual models are assembled at our site in India.

Are the cork profiles and the holder of the profile sanding set available separately?

Yes, the profiles and the holder of the profile sanding set are also available separately. You will find the corresponding order number in the attached image file.
You can obtain accessories from one of our specialist dealers in your area. You can find the address on our website under Dealer search.

Question:

Are there any other core drill holding systems?

Weldon 32, Weldon 1-1/4",

M18, Universal (WelNit, FullUniversal, One-Touch, Fusion II)

Can I resharpen / regrind my carbide or HSS core drills?

In principle, this is possible with carbide and HSS core drills.
However, a special grinding machine and the necessary rake and clearance angles are required.
There are special grinding companies that specialize in resharpening/regrinding.
As a rule, however, carbide and HSS core drills are not resharpened or reground. The costs for this are close to those of a new purchase.

Can a 60° bevelled edge with a length of 3-4 mm be applied to the inside and outside of a pipe using an edge milling machine?

64301008010, Fräser, 64302011010, Wendeschneidplatte, 64303008010, Führungsrolle

Can aerated concrete also be processed with the MKAS 355?

The MKAS 355 is not intended for sawing materials other than metal.
Sawing gas concrete also produces mineral dust, which is harmful to the motor.
The MKAS 355 cross-cut saw is not designed for this.

Can cast iron also be machined with the MKAS 355??

Cast iron can be machined with the MKAS 355
We recommend the mild steel saw blade 63502302000

Question:

Core drills with 1 or 2-speed gearbox. Which is better?

If core drilling is only carried out in the diameter range of 12 - 35 mm, it is sufficient if the machine only has one mechanical speed. This is usually approx. 450 / 500 rpm (KBE 32 / KBE 32 QW) Some core drilling machines are also equipped with an electronic speed setting. Here it is possible to reduce the mechanical speed by up to 50%. However, it should be borne in mind that a slower speed also means less motor cooling through the fan wheel (KBU 35 Q / KBU 35 QW). 2nd gear machines are used in the diameter range from 12 - 65 mm. The two speed levels of approx. 250 / 500 rpm allow the speed to be adapted to the core drilling diameter and are also significantly more versatile in terms of the material to be drilled (KBM 50 Q, KBM 50 U, KBM 65 U / KBM 50 UQW, KBM 65 UQW)

Question:

Where can I find the dimension for the distance between the center of the core drill and the front edge of the gearbox, magnetic base.

You can find the drawing with the dimensions click here

Question:

Does FEIN manufacture its own core drills?

Yes, FEIN has been manufacturing HSS core drills independently at our production site in the USA since 1977.
Decades of experience from which you benefit. FEIN has had a strategic development partnership for carbide-tipped core drills since 1984.

Does a FEIN core drilling machine require maintenance?

Yes, the machine should be regularly blown out and cleaned of swarf.
Check the coolant system for flow and blockages. Keep the magnetic surface flat and clean.
The dovetail guide must also be lubricated and adjusted regularly.
To do this, briefly loosen the worm screws on the drill stand, loosen with a rubber mallet and then retighten the worm screws.
Ensure that the drill motor of the core drill is at the same height as the worm screw to be retightened.
The dovetail guide is set correctly if the drill motor does not slide down independently or the feed can be carried out with a comfortable force.

How can I change the rubber lip/brush on the combination nozzle of my FEIN Dustex 25 / Dustex 40?

There is a gap on the left and right side of the combi nozzle. There is a lock in these gaps which holds the brush or rubber lip in place. Using a small screwdriver, you can release the lock by pushing it to the side with a little pressure.
The part to be inserted is now inserted with light pressure until the lock snaps back into place.

How can I prevent the cutting edges from overheating, becoming blunt or breaking off during core drilling?

Good lubrication must be ensured when drilling.

This is optimally achieved with the internal cooling of the core drill via a tank, a hand pump (order number 32132022007) or a cutting spray.
Use a commercially available drilling emulsion for the tank or hand pump.

The internal coolant supply is a gravity lubrication system that is only functional in a horizontal position (coolant tank on top).
In all other positions, the coolant must be delivered to the drilling point manually (hand pump, cutting spray).

When cooling from the outside, please note that from a certain drilling depth, only small amounts of coolant reach the cutting edges of the core drill. The coolant is always transported outwards with the chips.

Ensure that sufficient coolant reaches the cutting edges. Place the core drill gently on the material to be processed. This will prevent premature breakage or blunting of the cutting edges.

Ensure that the magnetic holding force of the machine is sufficient.
If this is not the case, there is a risk that the machine may move slightly, vibrate, wobble or shift on the material to be drilled.
Too much play in the dovetail guide of the machine. Means: Core drill has poor concentricity and is loaded on one side.

How do I attach the magnetic base of the core drill to a surface that is too thin, uneven, not large enough or cannot be magnetized?

When working on steel materials with a lower material thickness, the workpiece must be reinforced with an additional steel plate to ensure the magnetic holding force. The minimum material thickness can be found in the operating instructions for your machine. The additional steel plate must be attached by spot welding or with clamps.

For structured surfaces such as checker plate or tear plate, a vacuum plate order number 92602057017 and the vacuum pump order number 92601022013 are required.

For anti-magnetic workpieces such as stainless steel or copper and flat surfaces, a suction plate, order number 92602054016, is required.

Make sure that the surface on which the magnetic base is placed is even, clean and rust-free. Remove paint and filler layers.
The magnet must cover the entire surface of the material to be drilled. Even a slight reduction in the installation surface leads to a reduced magnetic holding force. Even the slightest feed force can cause the machine to lift off or slip. This represents a high work risk for the user. Suitable measures must be taken to increase the surface area.