This large straight grinder runs very quietly. There is practically no vibration. A safety trigger is a little awkward to use, but much safer. The chopper does not turn on when it is on the table. Please note that like most others, this die grinder runs at 25,000 rpm. Always use a face shield and hearing protection. If your whetstone shows signs of chips or cracks, throw it away. At 25,000 rpm the stone is subjected to very high G-forces and can explode if the stone is damaged. Always run theβ¦