The motor is overload-proof, so I’m not worried about ever overheating it.īecause the newly designed head sticks out further from the body, now there is a nice place to rest your index finger and thumb for stability. While it never got to the point where I couldn’t hold it, I was still glad they improved the internal cooling system. I did notice on my FMM 250 that the entire unit would heat up after prolonged use. Not only does the redesigned head make it more comfortable to hold, but it also allowed them get more ventilation by opening up the body and using a larger fan to keep the motor cool. Hand vibration was only noticeable when the motor speed was below 1, but from 2-6 I could barely sense any vibration. This not only keeps your hand from vibrating on the motor, but it also reduces the noise level. It looks like they attached the motor to the vibrating head with rubber grommets in order to reduce the transfer of vibration. They used the same principles that apply to soundproofing a room where you have to keep two surfaces from touching each other. The anti-vibration system completely separates the housing of the motor from the drive head.
To me, the greatest improvement on the new MultiMaster is the way they redesigned the metal drive head to reduce vibration. However, as with any power tool, it is recommended that you always use hearing protection. In the tests that I did with the starter kit accessories, I did not find any of them that required hearing protection.
The times that I notice how loud the MultiMaster can get is when I’m underneath a cabinet or a confined space that bounces the noise and rattles my brain. The noise level was roughly the same for the actual cutting process, but I did notice that the motor was louder on the FMM 250 even at the same speed. It cut through at least twice as fast and with little to zero vibration. When I switched over to the FMM 350, it all happened so fast and smooth I couldn’t believe it. It took a little longer than I hoped, mainly because the wood was wider than the blade, but this is to be expected in real life application. When cutting through a 2 x 4, the FMM 250 did a great job and felt smooth. I tested the two units back to back with the small wood blade and found a noticeable improvement on all ends. The end result is a smoother and faster cut that leaves the tool feeling very solid and comfortable in your hand. Either way, it’s still amazing how they did this. For example, when I do a plunge cut into a piece of laminated wood, I notice the power is driving the blades faster into the wood, but somehow it is still quieter because the vibration is reduced. Fein has added 100 extra watts of power to the newly designed MultiMaster FMM 350 and it’s easy to see. There are times I can’t tell if it’s more powerful or if there is just less vibration. As the name states, the FMM 250 is 250 watts. I have the FMM 250 Q, which I purchased back in 2005. The Fein MultiMaster FMM 350 Q Goes to 11
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