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Pneumatic air impact wrenches use compressed air to tighten and loosen nuts and bolts with strong, rapid impacts. They are the standard tool in tire shops, auto repair, truck and bus service, heavy equipment maintenance and steel erection.
How to choose an air impact wrench
- Drive size: 3/8" drive suits small engine and body work. 1/2" drive is the all-round size for car and light truck wheels. 3/4" and 1" drive are for trucks, buses and heavy machinery, and 1-1/2" drive is for the largest industrial bolts.
- Air supply: larger wrenches need more air volume. Check that your compressor and hose can keep up with the tool, especially for 1" models.
- Short or long anvil: long-anvil 1" wrenches, such as the Toku MI-3800GL and MI-5000GL, reach truck wheel nuts deep inside the rim.
- Kit or tool only: kits such as the S-Ks 4300KIT, Lotus LT12RCX and Gestar 774-011 include sockets and are a quick way to get started.
Popular air impact wrenches at KHM Megatools
| Model | Drive | Good for |
|---|---|---|
| Hans 83110 / Toku MI-1311B | 3/8" | Engine and body work in tight spaces |
| Hans 84110 / Total TAT40122 | 1/2" | Car and light truck wheels |
| Lotus LT12MCX / Blue Point AT5500TL | 1/2" compact | Cramped engine bays and suspension work |
| Hans 86110 / Total TAT40341 | 3/4" | Trucks, buses and farm machinery |
| Hans 88110 / Total TAT40111 | 1" | Heavy trucks and equipment |
| Toku MI-3800GL / MI-5000GL | 1" long anvil | Truck wheels with deep-set nuts |
| Toku MI-5500S / Lota KI-55-8 | 1-1/2" | Large industrial bolts and mining equipment |
Air or cordless impact wrench?
Air impact wrenches are light, powerful and run all day in a shop with a good air compressor. For roadside work and sites without air lines, a cordless impact wrench is more convenient. Always use impact sockets with these tools, and connect with a proper air hose.
All products from KHM Megatools are genuine and covered by the manufacturer's warranty where applicable.
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