I've had my Fein MultMaster tool for about 8 years years now. It's the older style, with a screw that holds the attachments. When I'm not using it, I think of it as a tool that, when needed, is priceless and I'm glad I paid the almost $400 for it. Whenever I actually have to use the tool, I get so frustrated trying to make it work right, that I end up tossing it back in the case and using another method to accomplish my task.
What happens is, every time I try to use one of the saw blades to make a cut in wood, the blade invariably comes loose. At best, the blade burns it's way thru the wood until again, the blade comes loose. When the little adapter washer for the new style blades came out, I got a couple, but it hasn't made any difference. I tighten down on the screw just as tight as I dare and the blade still comes loose.
I called Fein for tech help and the tech told me that I was using the wrong screw to hold the blades. He said the kit comes with two screws and that I should use the "other" screw and all will be good. Even though to my eye, both screws looked the same, I tried it and found no difference.
To this day, I don't know it that guy was just yanking my chain or what.
What the _____ am I doing wrong? I know that others use the MultiMaster with success, so it must be something I'm either not doing or doing wrong. Why can't I get this $400 tool to work the way it's supposed to work?!!!