Karl Townsend wrote:

...
See
http://www.toolup.com/vise-grip/20r....ise-grip%2020r

A strap wrench is less likely to mar the workpiece, but nothing grabs
like the chain on the Vise-Grip 20R. I've not seen a Chinese clone of
this at HF but there may be one.
...

One of the most useful tools around. My biggest ues for this tool is on a
gear/pulley puller. Ever had the puller slide off under high force? Put this
chain grip around the three legs and it can't pop off.

Or use the expensive posi-lock pullers. I wonder when their patent
expires...