Was gifted the above said scroll saw, the two speed motor works fine. went to install a blade after reviewing the owner’s manual and discovered that the lever for the quickset blade upper clamp is missing as well as the special wrench  for the lower clamp. I can deal with the lower clamp without the wrench but the upper clamp is a real hassle for blade changes. has anyone found parts or aftermarket parts that would work. Checked out all the replacement part sites as well delta and these parts are discontinued. 
Regards Ray