4.5 out of 5
Astro Pneumatic 1894 ONYX 1/2" "THOR" Air Impact Wrench
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Product Description
Manufacturer Part Number: 1894
Designed with a patented oversized floating air motor and a twin-hammer assembly that puts the weight over your hand for balance, and allows for industry leading power at only 6.7" in length. 1600 Ft./Lbs. NBT which rates at 940 ft./lb. traditional max torque Features a swinging forward and reverse switch, handle located power adjustment wheel, and a two-stage trigger for a lighter touch without adjusting the tool.
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Product Warranty
This item has one year repair warranty.
Return Policy
All EAT- items are returnable, except for Open Box Scan Tools. scan tools/electronics, air tool are non-returnable
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Customer Reviews
By ael fishe
Date: June 27, 2025
The specification says two-stage trigger, but it's actually completely variable speed and you can control the power.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By R. Sharma
Date: June 22, 2025
I have been stuck on an engine mount bolt. I tried 2 different air impacts and got nowhere. I tried a breaker bar and cheater bars and got nowhere. With in 5 minutes of getting the Thor, I was able to break away the bolt. Looks like at some point someone loctited it. This tool is true to the name. The 2 air impacts I have were a husky and an earthquake stubby. This is a great tool for those tough bolts. Definitely worth having in the arsenal.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By clyde brooks
Date: June 22, 2025
I have bought several Astro tools, never disapointed. This bad boy has some power. Updated my old IR to Thor after my 69th birthday. Haven't hit a fastener yet that hasn't surrendered. It's about 3/4" shorter than my old IR to. Looking into a 3/8 ratchet next
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Tommy
Date: May 30, 2025
Great Trade Recommend
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Jonathan U
Date: May 01, 2025
This impact wrench has a good amount of power, but it's not the end-all be-all. Don't let the name fool you. It'll still struggle with tougher fasteners (like the infamous Honda crankshaft bolt). I've had it for just over two years now, and recently it developed persistent issues with leaking air out of the small holes located on the handle. I can get it to stop leaking with some work, but within a day or two it'll start again.
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]
By A Customer
Date: April 24, 2025
All good so far, tool as described
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]