Air Impact Wrench

[Hookmaster]

Looking for an air impact wrench for doing lugnuts. The air compressor I have is a tankless Sanborn unit. It will develop >100 psi but I don't no the CFM it puts out. Are there any wrenches that will work with this compressor? Do I need to buy a new compressor which I don't want to do or buy an electric impact wrench (expensive)?

[MNice]

Impacts take a lot of air. I have a little 2 HP pancake style and it won't come close to keeping up. I crack the lugs by hand and use the imapct for speed. It works, but it doesn't work well.

[Jeremy airjer W]

An air impact would need a 5+ scfm to be affective. A tankless would only get up to maybe 3scfm if it were a 3/4 horse. An air impact will develop alot more tork that an electric. If I remeber right the electric 1/2 are up to about 250 lb/ft and a basic air impact would start at aroung 400 - 500 lb/ft all the way up to 1000+ lb/ft of torque. I would go for the compressor you can get a nice 30 gal upright at S-ears for around $280. just think of all the other uses you'll have for it (air wratchets, paint guns, nailers, angle grinders, blow guns)

[lawdog]

Quote:

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Do I need to buy a new compressor which I don't want to do or buy an electric impact wrench (expensive)?

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YES or YES. The electric's are nice, but Airjar is right you have a lot of tool options with a good aircompresser! I have a rechargeable that I use for tire changes in the pits at the races. Works well, but isn't quite as powerful as my big air unit at home. It just depends on what you are using it for. The hose is a pain on the air impacts, but the power is unbeatable...