AIRCAT 1150 "Killer Torque" 1/2-Inch Impact Wrench

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• sheer power and performance of 1,295 Feet-pounds (ft-lb) of loosening torque and Max. Torque 900 ft-lbs

• 1,400 Blows Per Minute makes this the strongest hard hitting Twin Hammer 1/2 Impact Wrench on the market

• 15-Percent larger rotor creates unmatched power

• Patented quiet technology at 86 decibels

• 2 year parts and labor warranty

1150 Killer Torque Twin Hammer Impact Wrench. The sheer power and performance of 1, 295-Feet-pounds (ft-lb) of loosening torque and 1, 400 Blows Per Minute makes this the strongest hard hitting Twin Hammer 1/2 Impact Wrench on the market. A light weight all-black composite body with a patented ergonomic AIRCAT handle. AIRCATs patented tuned exhaust system gives this tool an extremely low decibel level of 86 dB, with no loss of power. The 1150 is assembled in the USA with a 2-year Parts and Labour 

The only lubrication I use on all my air tools is a few drops of air tool oil into the air inlet before use each day. The alternative is to use an automatic oiler on the supply air line.. The automatic oiler is only used on air lines that are used for air tools only as the oil will contaminate the hoses if they are also used for spray painting etc....I hope this is of help for you

Thou shall oil thine air inlet daily with Air Tool Oil and Grease but once a month... Grease? Yes. The tiny ball bearing at the front of the gun, just beneath the anvil (where the 1/2" socket articulates to the tool) is a grease port that fits a "Mini" or "Needle" air tool grease gun. Just a dab will do before it back flows out of the port. Remember, you're greasing an air tool, not the ball joint of a semi truck. The AIRCAT® tools require the minimum standards below to keep your tool in good working condition.
Grease/ Oil AIRCAT® and NITROCAT® Twin Hammer:
Use Lithium or bearing grease. One pump every few weeks is all you need.} (quote from the Air Cat site). I hope you guys found this info helpful and remember, We Screw, We Nut, and We Bolt! :

In my first pneumatic impact wrench I needed precision, durability, control, and power. The Aircat 1150 delivered on all four requirements. As a bonus, it is relatively quiet, comfortable, and light weight. I almost did not buy it due to negative reviews on Amazon. I was resigned to choosing either a heavy, bulky, hard-to-control tool, or a controllable underpowered one. 

Two things changed my mind. First, an answer from the manufacturer stating that the user problems claimed in the Amazon "1 star" reviews were due to setup instructions not being followed. The second was a review of 1/2" drive impact wrenches in an air tool journal where the Aircat 1150 was judged best in its class. What could be improved? For novices, the manual could include instructions on grease lubrication, optimal hose length and type, and minimal compressor specifications. Amazon could help by supplying more buying options than impact sockets. To that end I submit this checklist for first time buyers.

 1. Quality air tool oil (Lucas). 2. Quality 3/8" rubber air hose 25' or less in length (Goodyear or Continental). 3. 3/8" whip hose with swivel 1/4" threaded male connector. 4. Quality mini grease gun with nipple tip (Lincoln). 5. Air compressor that can deliver a minimum of 8 CFM. 6. Quality bearing or lithium grease if not included with the grease gun (Lucas). 7. If the tool will be used by persons who won't maintain it, add B'laster Air Tool Conditioner.

Crankshaft bolt on my 1997 Toyota is nasty to remove. It is tightened to 283 ft/lbs of torque. My Craftsman 1/2" impact gun only creates 580 ft/lbs of losening torque and was not doing the job. Couldn't use a 3/4 driver because there's not enough space. Therefore, only a 1/2 driver will fit that space. I didn't want to use a 6' cheater pipe because when the friction is released, I run the risk of denting my fender no matter how well I pad the bar with foam and blankets around the fender. I decided to get this gun due to the 1295 ft/lbs of loosening torque.

First, I hooked the aircat up to my regular 50 foot air hose. Wasn't sure how much pressure loss but thought I'd give it try. I kept the gun on it for a while and no movement.
Sprayed some Maltby penetrant to help lubricate and remove rust off the threads. Came back 3 days later and still nothing :(

Called their support and they recommended that I crank up my regulator to 150 PSI to compensate for the long hose since the rating for this gun is 120 PSI for 1295 ft/lbs torque at the gun, rather than at the regulator. No luck.

If you read the instructions, they mention the following key instructions.
1. Don't use a hose longer than 25'
2. Don't use a quick connect at the gun.

Both of these things restrict air flow to the gun causing the gun to not perform at optimal range.

So to be safe, I bought a short 6' hose with 1/2" diameter, put on the adapters so that it's 1/4" npt straight to the gun and the other end 1/4" npt quick connect to the compressor. Set the regulator at 150 PSI

This is one insane bolt to remove because message boards were saying that you need about 1000 ft/lbs of torque to get this bolt off.

With the new setup, I can definitely hear and feel the amount of extra power.

At first, the bolt still didn't budge. It took me about 4 tries within the first minute and the bolt came off finally!

So my advise to you is to make sure that your setup is on a very short hose and you'll love this gun

First off, as far as raw torque goes I have no complaints. Especially for the price. Been using it for about 8 months now full time in a shop. It keeps up with the co workers snappy and IR guns no sweat.

However I have 2 major complains with this tool. Ones that if not for the price point, would result in a negative review

1. This is the one that gets on my nerves. A lot. However they cut the output shaft results in a lot of socket wobble when the gun comes up to speed. Doing things like removing lug nuts will violently vibrate the gun to the point of it will stall out when I let off the trigger. That same vibration can cause the socket to slip off the stud and mar up customer's wheels if you aren't careful. I can't just pop the trigger and let the lug "freewheel" itself off. I need to stay with it for that reason. My co workers IR gun doesn't have this issue, even with the same socket. My 3/8 aircat does the same thing, I think it must be in their tooling.

Doing things like removing lug nuts will violently vibrate the gun to ...

So ive been using this aircat 1150 for about a week at the dealership i work at and i use it very often from tire rotations to suspension work ect. And the powers is awesome and feels confortable. I bought a more expensive gun before this one and fail twice. My coworker told me about aircat and im happy i made the choice. I will come back for updates after a month use. So far i love it