How tight???
I put a 9/16 spanner on the head of the bolt that i put into the crank. Set it on the hex of the bolt and against a leg of the puller so the bolt does not wind when you do the puller up.
Then an 18" or so tyre lever through the puller and onto the table/floor. Then a 12" shifter and start winding. Ive never had one that didnt move before it came time to really start grunting into it.
You can cut them through with the grinder and split the last bit with a cold chisel over an anvil.
