The OP is asking about a $9 tool and everybody is recommending a $350-500 Chicago Pneumatic or Snap-On.
He said "best value". There's little to no value in a $9 air hammer. My 4 year old with a plastic hammer and chisel can do more effective work than one of those.
When it comes to value, if the tool cannot perform the job, it has zero value. Value is maximized by the cheapest tool that can perform the job. Which is why my recommendations were for 4x riveting hammers. A new setup could be had for $200ish, used for less than half that.
But everyone who has an air hammer will eventually encounter a task that it cannot handle (even my CP717 failed to remove an axle from a hub in one case), and lots of people have anecdotes of their own tools not being up to the task, so they borrowed something better and ended up buying the upgrade. So people here are naturally going to recommend something that works in the most situations. Hence the recommendations for expensive tools.
I don't use an air hammer all that often but this cheap IR 114gqc model has been fine. It by no means compares to the bad *** snap on model that is $400 bucks but for how much I use it it is fine. I special ordered it from advance auto for $50 bucks if I remember right.
It's got a quick release chuck and a rubber grip.
Funny you mention that. I've got the same one. Bought it at Lowes in 2005 for $36 when I needed to chip some concrete (long story). It's served me well, and I actually liked it more than my Snap On PH2040 (an OLD model that I got for cheap and sold for what I paid for it).
It's got a pretty controllable trigger, and considering that it comes with a quick release chuck (spring retainers are DANGEROUS IMHO), it's a pretty good deal, even at the $50 I see it for on Amazon now.
http://www.amazon.com/dp/B000VZAENC/?tag=atomicindus08-20
Right now, I keep it around to hold my needle scaler attachment.
If you're looking for something in-between garbage and a really good tool, this is it. It's not going to make an auto-tech in the rust belt happy, but as far as value goes, I'd rate this one fairly high.
No, I mentioned the best value I know of. Most people as always are saying "get the PH3050", or "get the biggest" , blah blah blah. Sure, I need a 400 dollar hammer, right?
Well, it depends. Perhaps a slightly more powerful hammer saves you hours of work just one time, or saves you an expensive part...