Astro Tools 401K 0.401" "Thor Super Duty Long Barrel Air Hammer/Riveter

This air hammer is worth it's weight in gold. I purchased it because of the Torque Test Channel on YouTube and it has proved itself multiple times in just a few days of use. I stayed away from air hammers because of their price and I've been getting along fine using my 4 pound sledge and pickle fork set. After watching several videos and other technicians recommending getting an air hammer I purchased the 401K Thor. The 498 Thor was tempting, but for regular automotive work you truly cannot beat the price of this tool. It is a big air hammer but is definitely extremely well made, functions perfectly, and saves an incredible amount of time and effort.

It's powerful. I have a few air hammers, including the bigger brother to this, the 498k, which is more powerful, but bigger, harder to use, and tool choices are more limited. The bushing sold to downsize it is a little clumsy ...the 401k is a better choice. A friend has a Snap-on, the power seems identical. And it's a great deal. "Good deal" and "snap on" don't belong in the same sentence.. This has been trouble free, as have many other Astro pneumatic tools.. The trigger is real good, but a little too much squeeze results in a lot of power..if I want to be delicate (funny term for air hammer work), I use an aircraft 2x rivet gun. Just a not so powerful, very controllable 401 shank air hammer. Any powerful air hammer might be limited by the hose and fittings. I just live with it. I blip the trigger...if you hold it down, the power drops a bit, the first few hits are harder than those that follow. Anything recommending some giant compressor for impact tools is weird, they just are usually not used continuously, so it isn't a factor like it is for running a sandblaster, needle scaling a bunch of rust, grinding, even painting. If you're doing suspension work, any small compressor that can fill it's tank to 120 or so psi will run this just fine. You just may have to pause while it refills.

It's not even broken in yet and it is the most powerful air hammer I've ever used so powerful you actually have to be careful what you hit with it

My first my last my everything. This hammer gets the job done impressivly

Powerful hammer. I am a tech at a dealership and have used it for a few months working on suspensions. Hammer shook itself apart twice and now is not usable. Probably would be ok for occasional use but if you are going to use it regularly I would go with a Snap on or other name brand hammer.

Decent bang for the buck. Chisel and other tools sold separately, of course. Hits fairly hard, but doesn't seem to hit as hard as the Snap On version.

I recommand this , so Far Very Good .my opinion is mush better than Ingersoll rand .Price is good & durability outstanding

I use this tool professionally. It gets used a few times a week. I have no complaints really hard hitting on par with snapon.

Great Air Hammer! Knocked all the rust out of a set of frozen rotors. Hits Hard. Highly recommended.

Good air hammer. I was shocked how operates with delicate triage. Soft start or powerful kick.. I'm using good air tools oil and this gun makes me happy Only big minus they don't give chisel set with tool included. I highly recommend ..this product.is better then my 123max ingeroll rand. With postage we have to be patient. Over week .

Brilliant tool, usual good Astro quality. I've only used it a few times so far but it's as good as I all the reviews say.

I am very happy with this air hammer. I have a snap on that as been broken for a while and its out for repairs. I needed a good back up. The air hammer is great. nice and smooth running but hits hard without rattling you too much. Will buy again and will recommend.

I own three other air hammers but this one is in another realm ! It is named Thor and I think it actually came from Asgard it is so powerful. Best buy ever from Amazon , hats off to Astro tools USA you knocked it out of the park with this beast! Thankyou.