The instructions on an inexpensive Dremel-type rotary tool set (tool, case etc.- 229 pieces for C$49) say "Handling the power cord on this product may expose you to lead, a chemical known to (sic) the State of California to cause cancer and birth defects or other reproductive harm. _Wash hands after handling_.
Now, the prongs look to be nickel plated, and the rest of the power cord is covered by PVC (and, incidentally, the web site of the manufacturer says their stuff is RoHS compliant).
Amusingly, the power cord manufacturer also makes passive 'scope probes.
Best regards, Spehro Pefhany