All of the Dremel #2 Moto-Tool illustrations that I've found show an extremely short (or no) strain relief on the cord at the exit from the tool; ads MENTION a #3, with 50% more power, but I haven't found an illustration so far. All of the #3 ads I have located are from the 1960's. An "industrial" version, upgraded from the #2, might well use a better spring-wire strain relief and perhaps better screening. Or, maybe that was a running change . . .?