To avoid these ads, REGISTER NOW!

Central Pneumatic Earthquake Impact Wrenches?

kythri

Well-known member
Joined
Jan 3, 2007
Messages
6,330
Location
Lebanon, OR
Kinda in the market for a weekend-warrior impact wrench, as the well-used no-name that I have at the moment is starting to give up the ghost (hey, it was $15 at a hawk-shop, and it's lasted me about 3 years, so I don't consider it bad at all).

I've read all kinds of things about the AirCat/NitroCat and IR guns here, and was consulting my father about his opinion.

Dad's the purchasing manager for the service department of a large multi-site farm here in Oregon (about 1500+ employees across the state), and as such, buys a bunch of tools.

Obviously, he's caught in the middle, between the service monkeys who want the best product possible, and the owners, who want him to spend the least money possible.

Fortunately, Dad's not a big fan of buying cheap **** - he understands the importance of buying a quality product that he doesn't have to replace all the time.

I asked him what the mechanics were using out at the farm, and he mentioned that they picked up some of the Earthquake impact wrenches from Harbor Freight a while (about 6-8 months ago) to give them a try, and everyone out there absolutely loves these things.

They've had a variety of cheap ****, they've had IR stuff, and they think these things are just sweet as can be.

Was wondering if anyone here had any opinion of them.
 
To avoid these ads, REGISTER NOW!

eschoendorff

Well-known member
Joined
Feb 6, 2005
Messages
8,991
Location
Michigan
If I was going to buy a 1/2" impact under $100, the Earthquake would be the one. Most impacts (even IR) are made in China nowadays....

If it were an impact over $100, I would look at a Nitrocat.

For the weekend warrior type, you'll probably be just fine with an Earthquake. I am still using a Campbell Hausfeld Ironforce wrench that I picked up at Lowes and even it has some balls.
 

strizzy

Well-known member
Joined
Apr 4, 2006
Messages
572
Location
Western NY
Ok, not gonna lie here either; man its like admit you bought "cheap" stuff weekend for me.

I've had one for a bit over a year and have used it quite a bit. I have yet to come across something that I was unable to get off with it (not saying its God-Like or anything...). It is pretty ballsy, that being said, it weighs a metric ton. All I remember is replacing a clutch for my buddy and I don't have a lift or anything, so I had been sitting in that weird half-situp position for some time while holding the gun over my head with one hand and thinking I was going to blow an o-ring or something.

But I think its a good 1/2 gun for a weekender, no problem. I will being buying a "good" 3/8 gun, as I could see using one much more often...
 

Curmudgeon

Well-known member
Joined
May 23, 2007
Messages
57
Location
Klamath County, Oregon
I bought one a couple of years ago and couldn't be happier with it. Incredible power and comfortable grip, all for $79. It's been used and abused and just keeps on going. I'm sure keeping it lubed properly helps too. With an adapter and a Budd socket it even removed nuts from a truck that someone had swaged on with a cold chisel to make sure they NEVER came off. This thing had enough power to take them off right through the bunged up threads. I like it so much I'm thinking of buying their 3/8" Earthquake.

I'd like to have the 3/4" drive Earthquake, but I haven't found anything the 1/2" can't do yet. It may be HF junk, but I'm very impressed with it.
 

kenfath

Well-known member
Joined
Oct 17, 2006
Messages
358
Location
Upland, CA
I have a HF Earthquake 1/2" impact wrench and am very satisfied with it. It has met my expectations. Located at the end of the square drive is a round, spring clip-like device which holds the socket in place. It is slightly larger than the square drive shaft and it took me a while to become familiar with how it works. At first I thought the female ends of my sockets were too small for the shaft. Of course that doesn't make sense, we all know 1/2" sockets are supposed to fit on a 1/2" impact wrench. I finally realized it just takes a little force to compress the spring clip to mount the socket.
 

rickshank

Member
Joined
Sep 24, 2006
Messages
5
Like the others in this thread, I've got one as well. I bought it based on the numbers about a year ago (I know...can't put too much faith in the numbers), and am more than pleased with it. I haven't found something it couldn't loosen down in the garage. Fairly heavy for the size, but still feels pretty good. For the price, it's hard to beat.
 

sunshineFC3s

Well-known member
Joined
May 2, 2007
Messages
103
Location
MN
I got the 1/2" one too. I use it every once in a while to remove some rusty hardware on my 20 year old sports car (read: bolts that have not been touched in a long time) and the Earthquake does it without any trouble. Its a great purchase even if it was double the price. But since its not...stop typing and go buy one! lol
-a
 

mulepackin

Well-known member
Joined
Dec 13, 2006
Messages
909
Location
Montana
We have a 20 plus year old Central Pneumatic 1/2 in. impact that has seen a lot of rough service and keeps on putting out. It is heavy, not glamorous but all it asks for is a little regular oiling and a steady supply of air. :dunno: The only thing wrong with it is the little snap ring deal on the drive end has worn so much it won't hold a socket well. (figured I had to come clean on this since everyone else is). If they have improved them at all with this Earthquake model, it should be an okay tool. Does look like a knock off of the IR Thundergun doesn't it?
 
Last edited:
OP
K

kythri

Well-known member
Joined
Jan 3, 2007
Messages
6,330
Location
Lebanon, OR
Welp, I bought it...

02623.gif


Had to drive over to the coast today, so I stopped by on my way there and snagged it.

They're "on sale" right now for $79.99 - website shows $99.99.

Haven't had much of a chance to dink with it, but I think I'm gonna like it. Gotta get home and pop a quick-disconnect ****** on there, and fool around!
 

MustangRick

Well-known member
Joined
Dec 26, 2006
Messages
308
Location
KC
Mine seems to need more air then other impacts that I have used. My air compressor can't power it, but I can run snapons, sioux, IR, etc just fine. With the Earthquake, it just can't keep up for some reason and I only get about 100lbs or so. My compressor has some jacked up air regulator in it that causes this, the other brands just don't get affected by it.
Other then that, the gun can knock off anything that I have tried it on.
 
OP
K

kythri

Well-known member
Joined
Jan 3, 2007
Messages
6,330
Location
Lebanon, OR
Hrmm - my compressor is an el-cheapo "Alltrades" 5 gallon job, and it works just fine.

I rotated my tires tonight, and the thing worked like a charm.

Of course, I also screwed up - somehow, when I was hand-threading all the lugnuts before running them tight with the gun, I missed one.

Apparently, it was just hanging there, and when I put the gun on it, I cross-threaded the ******, and ended up busting the lug trying to get it off.

ARGH.

Fortunately, I got my other set of wheels back today, so transportation for work isn't an issue, but my Explorer doesn't drive anywhere near as smooth or fast as my Crown Victoria... :(
 

TxDoc

Well-known member
Joined
Apr 25, 2007
Messages
220
I bought one several months ago. Mainly for quick removal, and replacement of mower blades at the time. Works fine. When I went in, I had a coupon that had it for $79, it listed for $99. When I got to the checkout, it rang up for $69, so I sheepishly put the coupon away.

Sometimes you can find some has coupons you can print out that have prices not shown at the store.
http://printable-coupons.blogspot.com/2006/07/harbor-freight-coupons.html
If you join HF's email list, you will get a couple of emails a week with deals, too.
 
Last edited:

wrigh003

Well-known member
Joined
Mar 27, 2006
Messages
783
Location
Birmingham, AL
If you join HF's email list, you will get a couple of emails a week with deals, too.

I got so tired of wading through the "deals" on huge sacks of zip ties and weird home decor items that I finally gave up on it (the email list), though. HF is kinda like Taco Bell. You know it's cheap **** and that it's probably bad for you (definitely bad for you in quantity), and you stand a good shot of feeling a little bad about it later, but occasionally it hits the spot. I've bought some junk there over the years.

For my uses (mower blades, tire rotation, taking suspension pieces apart on old cars, ___________/???), I am actually considering the CP Earthquake- thanks in no small part to the number of "well, it's not completely awful" reviews here. It's either that or save a little more and actually go ahead and buy a "nicer" IR or other impact gun. Don't know if I'd see the benefit of a tool that costs twice as much for my light use, though.
 
Last edited:

cyrax59

New member
Joined
Jul 11, 2009
Messages
1
The Earthquake series is nothing but the truth from Harbor Freight, however being honest, I didn't feel that way at first and was a bit reluctant to buy any air tools from HF. But after reading the good postings I decided to go out and purchase an impact wrench and air ratchet for my 72' C10 restore project (what the hell I didn't have anything to loose because of the 30 day return policy). Well what else can I say, I've found faith in Harbor Freight. In the the past month I've bought Husky, IR and Campbell Hausfeld impacts and they were all returned because they couldn't remove the rust welded bolts (all rated at at least 450lb tq). But with this $80 earthquake no bolt was impossible to remove. A strain was never put on the tool, it just snapped off rusty bolts with supernatural power.. I love it. Ohh! let's not forget the very powerful $70 100lb tq ratchet (it's easily one the most powerful and fastest air ratchets out there) that aggressively and quickly remove bolts as well. Both are amazing and surprisingly high quality tools that are well priced (both combined cost lest than one of it's competitors tool) and are true bargains. If Harbor Freights can make all tools this well crafted, cheap and powerful, other air tool makers would be in big trouble hands down.
 
Last edited:

intheusa

New member
Joined
Nov 21, 2009
Messages
2
Yesterday decided to buy Harbor Freights 1/2" earthquake 625 ftlbs. Didn't really get to put it to any real tests yet, but the db noise isn't that bad. For that price ($79) I was expecting something much louder.

Now I don't use this tool for a living and it is a little heavy, but if it performs as some of these posts imply I will be very happy, just if it saves me a few busted and skinned nuckles.

I would like to mention that the quality of many tools at Harbor Freight is getting much better. In my younger years I would only buy drill bits and most of my tools at Sears because of their replacement policy. The world is changing.
 

Marlin

Well-known member
Joined
Dec 6, 2007
Messages
1,037
Shop around and for $20 more you can get the IR231C which should last a backyard mechanic forever. Many professional mechanics still rely on this model for daily use to make their living.
 
To avoid these ads, REGISTER NOW!

speed bump

Well-known member
Joined
May 28, 2008
Messages
6,317
Location
Butte Montana
Shop around and for $20 more you can get the IR231C which should last a backyard mechanic forever. Many professional mechanics still rely on this model for daily use to make their living.

Why pay the extra $20 for a brand name chinese impact gun?
 

Marlin

Well-known member
Joined
Dec 6, 2007
Messages
1,037
Why pay the extra $20 for a brand name chinese impact gun?

Because it is made by Ingersoll Rand in a Ingersoll Rand factory using the same drawings and material specifications that they've used since developing the 231 in the early 70s.
 

fordbroncodave

Well-known member
Joined
Sep 15, 2009
Messages
4,555
why can't i find a price for the 3/8" drive impact one?

also want to know about the quality of the 3/8" drive air ratchets from earthquake.
 

FastEddieG

Well-known member
Joined
Jun 16, 2009
Messages
239
Location
Chicago suburbs, IL

FastEddieG

Well-known member
Joined
Jun 16, 2009
Messages
239
Location
Chicago suburbs, IL
I bought one of these 1/2" impacts yesterday and used the 20% coupon on the $79.99 sale price for a final price of $65.99. Haven't had a chance to use it yet, but feels solid. My old IR 1/2" has seen better days so this is a welcome addition. I may go back and get the 3/8" :)
-Ed
 

TBD

Well-known member
Joined
Nov 21, 2009
Messages
50
I gave in and ordered one last night, no store close enough to make it worth the trip. Look forward to trying it out.
 

jteck75

Well-known member
Joined
Nov 25, 2009
Messages
294
Location
Benton Ky.
No matter where it is made, an IR231 is one helluva tough gun. I did nothing but work the devil out of mine,oiled it,and shot some grease to that inverted fitting in the back. It had its A-Game on day in and day out. I gave the 231 and a few other things to my best friend,when he got on in the service dept. at a local Toyota dealer. That was 4 years back and he is still thrashing the hell out of that 231 to this day.
 

Handyman163

Well-known member
Joined
Jan 12, 2010
Messages
112
Location
SW Michigan
I've been pondering whether to buy one of these or not for a while now. After reading this thread, I took the plunge and WOW. What a difference this gun made over the cheapo 230 ft.lb. rated harbor freight gun!

I also upgraded my compressor coupler, hose ends, and high-volume tools to the new Hi-flo air connectors (links below). I'm sure this only helped. The opening is a good deal larger than the standard 1/4" connectors.

I adjusted some drum brakes on my pickup the day I got the gun, and I had removed and re-installed both wheels, and when installing the second wheel, my compressor finally kicked on for the first time. This gun did not work hard at ALL to get the lug nuts off on my truck. After tightening down, I put the socket on a 24" break-over bar to check tension, and I wouldn't want them any tighter. This gun performed flawlessly.

I run my impact gun on a 3/8" x 50 ft hose with these hi-flo connectors. My compressor is a Harbor Freight model 94667-0VGA (21 gallon, 3hp, 115psi rated). I had to adjust the pressure shutoff to get it to 115-120psi, however - just FYI - it shut off at 100psi out of the box, which offered no head-space trying to run tools rated for 90psi. The compressor used to run every time I used a tool.

Links to some of my air-related harbor freight gear:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=65894
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=97631
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94667
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=2167
 

t100

Well-known member
Joined
Sep 3, 2009
Messages
6,101
Shop around and for $20 more you can get the IR231C which should last a backyard mechanic forever. Many professional mechanics still rely on this model for daily use to make their living.

the HF warranty is good all around, if something is wrong with it, just go get another one. on the other hand, fixing an used IR isn't cheap.
 

Darkbreeze

Well-known member
Joined
Oct 10, 2012
Messages
57
Location
Pueblo, Colorado
I realize this is an older thread, but I came across it looking for something else and wanted to interject my experience with the Earthquake line of air tools from HF. Normally, I won't buy any of their air tools unless I know I'm only going to count on using it for a single job.

In this case my Mac I/R 1/2" impact took a **** and the parts to fix it were going to run about 150.00. I took a chance and bought both the 1/2" and 3/8" inch models and I have used them every day, five days a week, all day long, doing medium to heavy chassis and drivetrain work, plus a variety of other lighter duty work like removing lawn mower blades, running down lag bolts into treated lumber and tire/wheel work.

That was six years ago. Not one single problem with either impact wrench except for having to replace the anvil rings twice on both units. Since I've had to do similar replacements with my previous Ingersol and Bostitch units, I can't count that against them. This 1/2" Earthquake unit from HF has already lasted longer than my Ingersol Rand unit purchased through Mac tools did, as that one only lasted five years before an internal failure.

When this unit dies, I will absolutely buy another one. And, perhaps more importantly, this unit has as much or more torque than that unit did, and I've only a handful of times encountered a fastener I couldn't take out with this unit and in all fairness, every one of those times it was on something where the bolt sat inside a long channel and was rusted all the way through the channel, holding the bolt fast. WELL worth the 69.00 I paid for it.
 

Loscaldazar

Well-known member
Joined
Feb 23, 2013
Messages
2,385
Yup. I paid $60 for my 1/2 drive and under $40 (bought new in box off eBay) for the 3/8. For $100 total, these guns have already served me well for over a year. Haven't run into a bolt that the 1/2 can't remove (yet). I bought mine because I needed something now while I saved up for an IR. I have the money to buy an IR now, but haven't run into a reason to upgrade yet. I did buy a compact m7 1/2 impact because of it's small size and it gets places where no full size 1/2 impact could ever get though.

They aren't the most powerful, lightest, or quietest units out there, but with 700 ft-lbs (1/2 drive) they have a great amount of power. They're great units.
 

Marlin

Well-known member
Joined
Dec 6, 2007
Messages
1,037
Another very good value that not too many know about is the Napa NPT 6231. It's a copy of the 231 but after seeing how it's made, I would say that it is better.
 

hangfirew8

Well-known member
Joined
Jul 14, 2008
Messages
879
Location
Central Maryland
We have a 20 plus year old Central Pneumatic 1/2 in. impact that has seen a lot of rough service and keeps on putting out. It is heavy, not glamorous but all it asks for is a little regular oiling and a steady supply of air. :dunno: The only thing wrong with it is the little snap ring deal on the drive end has worn so much it won't hold a socket well. (figured I had to come clean on this since everyone else is). If they have improved them at all with this Earthquake model, it should be an okay tool. Does look like a knock off of the IR Thundergun doesn't it?

The ring is a "wear item" and is designed to be replaced. Most tool trucks or tool repair places will do it for a few bucks.
 
To avoid these ads, REGISTER NOW!
Top Bottom