Well guys, I've also always used the big f'n screwdriver and cam'd open that nice, soft lead terminal. And it gets chewed up a little more every time the big screwdriver is used.
Being cheap, I never wanted to spend a bunch of money on a tool I'd use once or twice a year. Being patient, I figured I'd find one at the swap meet or when I troll the antique shops and malls on trips.
$5 got me an antique KD tools version from an antique mall on a road trip. It was a little loose, so a setting the rivet on my rail road rail/anvil and a whack on the other side with a big hammer tightened it up nicely.
I like it over the screwdriver not only because it doesn't chew up the terminals, but it spreads the terminals evenly front-to-back, not just spreading one side or the other.
Worth having. NOT worth having at $50! After having it, I'd pay $25-$30 and not be happy with the price after using it the first time. If you've got an engine bay you care about keeping nice looking, it's well worth getting, as is the puller.
I've got a cheap puller (don't remember the brand, and am too lazy to make the walk to the box), but I've started using it every time I pull a battery cable--a screwdriver will always chew it up, plus a screwdriver wedges off only one side, while the puller makes a nice, even pull from both sides.
-Brad
-Brad