sawing cutter MT3 (need identify what bits one could buy for this tool)

[diy-john]

Hello

This tool came with my milling machine a year ago
# For reference, picture of the milling machine. It takes MT3 -tools.


Seller thought the tool is for sawing bits, but could not remember what kind of tools could go with it. Can't blame him though for not remembering, it's been a year since I bought the machine



This picture shows, how badly the bits fit together (it is difficult to center the pieces, they don't sort of fit together)


Here parts are separated on a table:


This picture shows diameter of the "shaft" (metric scale)



Hoping one could use this tool for split -cutting items. Like this perhaps:
http://lh4.ggpht.com/_vxp-DxcoOlo/TR1oGLJKlvI/AAAAAAAAAgo/wruVyulXkck/Slitting Saw DIY TTS 1.jpg

Please would someone know what kind of sawing bits one could use in it? (if you think the tool indeed is for sawing)


Thanks for looking!