valve spring compressor

I have the craftsman cork screw spring compressor and change 400+psi spring rate springs no problem, I use it on double springs, used it on my 340,slant,440,410 etc...

you really need to make sure the offset arms are placed under the right coils or it will '**** eye' and break the tool [has not happened to me] or luanch a spring sky high.

ALSO when removing springs, give it a light tap on the t handle to break the keepers/locks loose.