I finally bought this CV tool on ebay for < $20 ($17 or so).
This is the best investment ever.
Once the circlip is released, slowly crank the tool (I use a piece of old radiator hose as cushion),
and the CV joint comes off like butter.
In the past I had to use the vise and hammer/drift combo, which I hate.
This tool is a must, plus it is so cheap at $17.
Photos of the tool in action (2004 V70 2.5T axles with 110K, preventive CV boot replacement):
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