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Air compressor vs. its tools

Posted by Dave Jones on August 13th, 1998 03:48 PM

I've got a new craftsman 5.5 hp, 30-gallon air
compressor. It is capable of 6.4 SCFM at 90 PSIG.
I just bought a 25-400 ft/lb impact wrench. The box said its
minimum requirements were 4.0 SCFM at 90 PSIG. However,
the instructions inside the box says 8.0 SCFM at 90 PSIG
is needed.

If my compressor will not be able to power it to the
full 400 ft/lbs, I'll return it for a cheaper model that
I could fully use. A 25-225 ft/lb version from craftsman
exists and it is $40 cheaper.

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