110v tools work at 50 volts to the tool as a transformer is centre tapped. Don’t think there have been any recorded deaths using 110v in UK. But it can only take 20ma across your heart to stop it beating and I think there were 11 recorded deaths of people sticking their tongue in a 9v battery. 240v or 110v in sensible hands with sensible working practices all fine and would be better to make sure power tools are annually PAT tested after first year of purchase.
