An electric car polisher which was vibrating badly.

On inspection, the counterweight attached to the main motor shaft had snapped off. Although it may have been possible to mend, the balance would never have been perfect which could lead to problems further down the line, so my first port of call was to contact the manufacturers to see if a replacement part could be ordered, however they said that they would replace the whole unit free of charge, as this was clearly a case of defective materials (as opposed to misuse, age, or wear-and-tear)

I charged £10 for this, a worth while repair as a new polisher would have been £50