Worked for a month :(
It stopped working after 1 month.  I can tell there's a short in the wire.  I wrote a message to the seller but so far haven't heard back:( I just wanted another hand piece since that is what stopped working. Other than that, while it worked,  it worked good. Not as powerful as the drills with foot pedals but it still did everything I needed it to.
Rating: 3 stars