UPS transformer breakdown

I brought one of those 'superthin' cutoff discs & it hasn't got the sidepressure strength that a normal 3mm thick disc has. It broke off around the boss on the shaft before cutting thru one end of a fridge compressor windings.

The transformer mentioned above was probably a microwave transformer. They (and the transformers in home stereos - I found out last night) have the 'I's & the 'E'es stacked & by using a hammer (or hatchet) you can bash it apart into 2 peices.
Then the copper coil comes out as one solid peice.



The transformer in the UPS (which would be worth less than the whole UPS to a solar energy nutter) has the I & E interlaced.
Thats when you cut the end off the windings & punch the rest out of the solid iron core. (which can now be sold as 'Heavy metal insize' rather than the 'shread' that it is now.