some kit have 'jumper' links which can be changed to change the voltage
and theoretically, the windings on a 110V tool would be heavier, becuase the current draw id larger for the same power rating so should be able to handle the 230V easily (i volunteer you to try it out with your tools)
but the question is: why would you want to - they are not saying you CANT use 110, just that you dont HAVE to use 110
or is because of that big heavy tranny you have to lug about......
