Changing the plug will not change the power needed to run the saw. If the saw has a dual voltage motor then a wiring change can be done to switch the saw from 240 to 110 volts. If it is not a dual voltage system then the saw must be fed with 220 volts.
No
It would be better if you got a transformer and stepped up the voltage.
Yes, you need a transformer
NO The radio will actually run at about 6 volts via an internal transformer. If you plug it into a 110v supply you will only produce 3 volts which is the same as trying to run it with flat batteries. The only way is to use a 110v to 240v transformer which will be rather large, cumbersome and heavy.
no
You need a step-up transformer, to go from 110 to 220-240 volts. Then a 110 volt supply can operate 240 volt equipment.
With a transformer.
A control transformer marked 240V - 24Vac would have a control voltage of 24 volts.
Using a box that is hire voltage than what you need can cause a short, and even a fire. So using a 240V box, when all you need is a 110v receptacle, wouldn't be a good idea.
One word: KABOOM.
No. Trying this will likely destroy the tool and may likely cause injury. The plugs are made differently to prevent them from being connected to incorrect power sources.
you could possibly design a fix for it but it would be a lot of trouble. the American dryer has internal components that run off 110v and that 110v is available from the three wire 220v circuit in the typical usa residence. this is because of the third wire, the neutral. the Korean 220 would be 2 wire. you would have to go inside the dryer, add a 220/110 transformer and rewire the dryer so that the 110v loads come off that transformer. it would then no longer be ul listed and would have to be evaluated by the authority having jurisdiction in Korea and back here in the usa.