The FEIN magnetic drilling system.


With more than 25 years of continuous development, FEIN’s magnetic drilling technology has achieved a peak of excellence. FEIN’s 2011 acquisition of Jancy Engineering raised the bar even higher, now offering the well-known Slugger trademarked system of portable magnetic drills and annular cutters.

Now you’re leaving the FEIN website and entering the Slugger website!

Question FEIN MultiMaster/SuperCut
Are there any adapters existing, in order to tighten MultiMaster tools (star Fitting) on SuperCut (double hexagonal socket)?
Yes, different adapters, according to the machine model, are available. Please ask for support info@feinus.com.
Are there any adapters existing, in order to tighten SuperCut tools (double hexagonal socket) on MultiMaster machines?
No, SuperCut tools are designed for greater performance and would overload the MultiMaster.
Is it possible to use MultiMastertools with star recording on older MultiMasters with round tool holder?
Yes, the inside diameter of the star recording is the same, as the diameter of the round tool holder. In order to improve the power transmission we recommend to use the adapter order no. 3 01 09 189 01 0 and the span screw set order no. 4 30 33 087 06 5.
Is it possible to cut tiles with a MultiMaster tool?
No, the oscillating tool is not suitable for cutting tiles.
When unravel joints; my Carbide saw blade wears out very quickly?
Tile joints with a higher proportion of cement or tile adhesive in the joint, the carbide saw blade is not strong enough. Please use diamond-tipped saw blades.
What speed should I set on which tool?
On some tools, you will find some information on the packaging, about maximum speed setting. For example Profile sanding set. In general, the adjusted speed depends on the operation and the material. We recommend starting with a small velocity and according to the operation, to increase the speed gradually. Generally while grinding operations, because of emergent frictional heat, we recommend speed setting up to maximum level 4.For higher speed setting and high pressure to the grinding pad you may risk to melt the plastic of the Velcro fastener.
With which accessory tools it is possible to cut screws or stainless steel?
There is no accessory tool existing. Because of only slight movement during oscillation, only few teeth are in use. They would heat up very quickly and burn out the saw plate.
Is it possible to modify older MultiMaster with round tool holder into star recording?
Because of technical reasons it is not possible. There is existing en adapter, order no.: 30109189010. This adapter improves the torque transmission and that’s why we recommend it for older MultiMaster with round tool holder.
What is the reason for melting the plastic of grinding pads?
Generally while grinding operations, because of emergent frictional heat, we recommend speed setting up to maximum level 4. For higher speed setting and high pressure to the grinding pad you may risk melting the plastic of the Velcro fastener.
What is the reason for profile grinding set falling apart?
Use profile grinding set with maximum speed level 4.
What is the reason for broken teeth on the saw blades?
Upon immersion into solid material, you should use a sawing motion, this will help ease the machine into the material for optimum cutting. Without space the teeth of the saw blade will hit against the material, will get bent and break.
Where can I get accessories part for my MultiMaster or SuperCut?
At one of our dealers nearby you. Address you will find under: http://www.feinus.com/en_us/dealer-repair/
Questions and answers about the spare parts catalog
What minimum requirements must a PC satisfy for the catalog to function?
  • Windows 98 to Windows 7
  • Internet Explorer 6.0, Firefox 3.0, Opera 9.52, Safari 4.0, Chrome 17.0
  • Flash-Player from Adobe must be installed in order to see the drawings
  • JavaScript must be activated in Internet Explorer
Which prices are displayed?
All displayed prices are the C. & E. Fein GmbH recommended retail prices (MSRP) and are subject to applicable sales tax. The invoice amount is determined by the prices applicable on the day of shipment. Subject to transmission errors and changes in technology, design and appearance.
How can I tell when the spare parts catalog was last updated?
After the spare parts catalog starts you will see below left when the catalog was last updated (see example).
Questions and answers about core drilling
How can I prevent the core bits from becoming blunt or overheating when drilling?
Remember good lubrication is essential. Optimal results can be gained with internal cooling via the core bit with a standard drill emulsion.
What should I do if the core bit is chattering?
  • Check whether the core bit is still sharp.
  • The guides must be set to have no play on the machine. If this isn't the case, please send your tool to customer service.
  • Carefully increase the feed force until the chattering decreases or change the speed if possible. Use caution as too much feed force may result in the tool lifting up.
What do I need to change if core bits are breaking?
  • Check whether the core bit is still sharp.
  • The guides must be set to have no play on the machine. If this isn't the case, please send your tool to customer service.
  • Reduce the feed force and change the speed if possible.
How should the tool be set up?
  • The surface being worked on must be clean and free of rust, scale or paint.
  • The entire magnetic foot must sit on the material to be drilled.
  • The material must be at least 12 mm thick and magnetisable.
What problems can occur, if one or more of the above requirements are not fulfilled?
The result could be the machine moving on the material causing cutter breakage.
What should I do if the material isn't magnetisable or is thinner than 12 mm?
You'll need a vacuum plate and pump, or a suction plate. These items are described in the catalogue.
Why should I use a centering pin?
  • To find the exact centre of the drill hole
  • To eject the slug.
What should I note when drilling?
  • Position the drill with care and drill through in one go wherever possible.
  • Don't switch the tool off during drilling, as doing so could cause the core bits to break loose.
  • Before the drill is withdrawn from an incomplete hole, let the tool run for a short time at the bottom of the hole without removing any material. This will break the chips forming at the bottom of the hole.
  • Always withdraw the drill from the hole with the tool running clockwise.
What action should I take if the core bit gets stuck?
Switch off the motor. Inspect and carefully take the appropriate action to remove the cutter.
What problems can be experienced with core drilling?
  • High temperatures near welded seams or separating cuts made by cutting torches may result in structural changes, which can cause the core bit to wear very quickly.
  • In the case of overlapping holes, the core bit may catch at the transition between the existing hole and the new one, causing the core bit to jam or even break.
What is the proper way to store and transport core drills?
  • Store and transport the core drill in its original packaging or at the intended position in the transport box.
  • Core drills should be protected from impact, to prevent damage to the core drill or cutter.
Questions and answers about battery care
How should I store my batteries?
NiCad / NiMH batteries should only be stored over longer periods in fully-charged condition. Due to self-discharge, recharging is required at least every 3 months. Lithium ion batteries should not be stored either empty or fully charged for long periods. The ideal storage, determined by exhaustive tasks, takes place with 40 to 50% capacity at low temperatures, but not under 0° C. Storage between 5°C and 10°C is ideal. Due to self-discharge, recharging is required at least every 12 months.
Should the battery be taken out of the equipment if it will not be used for a long period?
Yes. Even in switched-off equipment, a small current can flow that, after a long period, leads to a deep discharge, damaging the battery and possibly destroying it in extreme cases.
What is self discharge?
A NiCad/NiMH battery in unused condition loses between 60 and 80% of its charge in 3 months due to self-discharge. With lithium-ion batteries the charge loss is 3 to 5% per month. The self-discharge is temperature-dependent and greater at high temperatures. Room temperature is ideal.
What is deep discharge?
Deep discharge means draining a battery until absolutely no more current is delivered. In the process, the voltage sinks to 0 Volts. If this condition is maintained, chemical reactions take place on the electrodes that make the battery partially to totally unusable. The result is a massive battery capacity loss and, in extreme cases, it can no longer be charged. For this reason batteries should not be drained below a discharge termination voltage that depends on the type and then recharged as quickly as possible. Basically, lithium-ion and lithium-ion-polymer batteries should not be completely discharged. As a rule of thumb, lithium-ion and lithium-ion-polymer batteries should be recharged when 10 to 20% capacity remains. Basically, good lithium-ion batteries have built-in protection and monitoring switches that prevent deep discharging, overcharging and possibly an explosion.
In what temperature range should I operate my batteries?
NiMH batteries are not suitable for use at temperatures below 0°C. Near the freezing point, they already display a definite loss of capacity and below about -10°C they become completely unusable. NiCad batteries are suitable for use down to -10° C. Use of lithium ion batteries is possible in a temperature range from -10°C to +55°C however, charging should take place at n battery temperature of +5 to +45°C. The ideal temperature for the batteries is room temperature. A temperature sensor in the battery ensures that no rapid charging takes place outside this range.
How long is the service life of batteries?
NiMH batteries can be charged between 400 and 700- times, NiCad batteries between 500 and 1000 times and lithium-ion batteries up to 1000 times (depending on capacity). However, these values are only achieved under ideal conditions. Depending upon handling and care of the batteries, the number of cycles may also be reduced. The capacity declines during the service life. Generally batteries that are under 70% of nominal capacity are considered worn out.
What do memory effect (with NiCad technology) and lazy battery effect mean?
The battery recognizes how heavily it is used. If the battery is not completely drained before charging, small crystals form on the electrodes and reduce the ability to accept a charge. So if your battery is not completely discharged several times in a row, the standby times keep getting shorter. With NiMH technology a lazy battery effect similar to the classic memory effect can occur. Lithium-ion and lithium-ion-polymer batteries may be recharged at any time. These batteries have no memory effect, however, frequent partial charges should be avoided. Full charging in several stages - with or without partial discharge between - also does no harm. But lithium-ion and lithium-ion-polymer batteries should not be completely discharged. As a rule of thumb, lithium-ion and lithium-ion-polymer batteries should be recharged when 10 to 20% capacity remains. With lithium ion batteries it is also not necessary to charge and discharge a new battery several times so it can reach maximum capacity. If the initial charge is carried out correctly, the battery possesses maximum capacity from the first day. Inserting and removing a full battery from the charger does not lead to a higher charge but instead causes damage.
Can I reverse this effect?
If the capacity of the NiCad battery declines over time it can be revived: Completely drain (no deep discharge!) the NiCad battery (under load), completely charge, and repeat this procedure several times. The performance will improve again with each repetition. Refreshing equipment is required for NiMH batteries.
Can batteries be repaired?
Durable, high quality repair of batteries is not possible. Even though third parties claim that they can repair batteries cheaply, the impact is short-lived, since the new cells are not compatible with existing components. FEIN and its distributors offer long-term quality. Basically, defective batteries are exchanged.
The following rules for lithium-ion battery care should be followed to maintain the energy storage capacity as long as possible:
  • The first charging cycle is decisive. Charge the battery completely before the first use.
  • Every battery has only a limited number of charging cycles. Therefore, do not recharge the battery at every opportunity but always use it until it is almost exhausted (between 10 and 20% charge).
  • If the battery is discharged below its nominal voltage, this can lead to processes that damage or destroy the battery. The FEIN batteries therefore have electronics that warn the user and switch off the tool before such a deep discharge can happen.
  • frequent overcharging can also permanently damage the battery. So the charger automatically terminates the charging process as soon as the battery is fully charged. Do not force the charger to supposedly pump more charge into the battery by repeatedly switching it on and off! That does not lead to a higher charge but instead causes damage!
  • Charging should generally only be done at room temperature (approximately 18 - 21° centigrade). Avoid charging a cold battery. This damages the cells. Always allow the battery to first reach room temperature, especially during cold outdoor temperatures in winter, and then charge it.
  • High temperatures also damage the battery. Never leave the battery or, even better, the entire tool case in the car or in direct sun on hot, sunny days. At temperatures over 60°C the lithium-ion battery permanently loses capacity.
  • Lithium ion batteries should not be stored either empty or fully charged for long periods. The ideal storage, determined by exhaustive tasks, takes place with 40 to 50% capacity at low temperatures, but not under 0° C. Storage between 5°C and 10°C is ideal. Due to self discharge, recharging is required at least every 12 months.
  • An unused battery should be kept cool but not cold. Even in unused condition, the batteries lose energy. The lithium-ion battery loses about 3 to 5% monthly.
  • If a lithium-ion battery is not used for a long period, it should be recharged after 12 months at the latest, otherwise it will be irreparably damaged.
  • Naturally, old used batteries must be disposed of in an environmentally compatible manner.
Does FEIN sell machines or spare parts directly?
No, we only sell tools and spare parts through our FEIN authorized repair centers and dealers.