I was able to find a tool to unscrew the secure bolt (snake eye? pig noes?) on the FS-60CB focuser. However, the bracket from Tak adapter kit is too short (its edge blocks the screw hole) and the bracket from the original EAF kit is too long (it touches the knob that was not removed on the other end)
I ended up removing the other knob and used the bracket from the original EAF kit. The rest of it worked fine. Still need to test the EAF under the stars.
I don't think the focuser I had is an exception. I had seen many Taks having similar secure bolt and focuser. Honestly I was a bit surprised to have to go through so many hoops to install this EAF. It is clearly stated that FS-60CB is supported by the new Tak adapter kit. It took me a while to get my hands on this extra adapter and I ended up not using it at all. I was wondering how this Tak kit was tested before its design was finalized.