[Milsurplus] Tube pullers

[BOB]

I hope this is not far off topic but I could use some advice on what 7 pin and 9 pin tube pullers actually work. I have one of the Chinese finger trap variety and it won't work on any tubes other than the ocasional tube that is  very loose in its socket anyway. I'am sure you gentlemen with a lot more experience than I, will be able to steer me in the right direction. I am having problems with My R-390 and with 30 plus tubes I need a better solution than my fingers.
Thanks in advance.

Bob W1GTH