Originally Posted by
soyabean
These three way wrenches are considered "condo tools" (includes the ParkTool AWS-1), and are really made for new fasteners, nothing corroded or seized.
There's reason why you'll never see such tool by Snap On Automotive.
To remove heavily torqued or rusted fasteners, use hardened hex sockets for a 3/8" socket wrench. That's what I do.
Save the ParkTool AWS-1 for when you put lubed fasteners back on.
I agree, Y wrenches are about convenance and quickness. The ability to apply significant down pressure while also having good leverage pretty much eliminates these wrenches from use on seriously tight/stuck fasteners. But that's like the difference between the repairs you do in front of customers and those that get done in the back, after hours and maybe with a beer
Andy