*When I worked for my dad hundreds of years ago he had corded tools that
would occasionally have the same problem. It was always in the cord
where it entered the power tool. That part gets a lot of stress and the
insulation on the cord wears out. The solution at that time was to
either shorten the cord or replace it altogether.

BTW that is an accident waiting to happen. Don't use that tool until it
is fixed. There is no such thing as acceptable leakage through a human.
Install a GFI today.

I was gonna say, it is a Darwin filter in the making. But by the time
people start hanging out on here, they usually already had kids, so it
doesn't apply. But yeah, DUH! If a tool is 'tingly', you fix or replace.
And if you replace, you throw it away in pieces so somebody else does not
get hurt.


*Sometimes kids emulate their parents. If his kid decides one day he needs
to drill or cut something and helps himself to dad's power tool.....