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Does anyone know who manufacture MAC air impacts, in paticluar the AW434. My impact has little rpms.

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The 434 is made by Ingersoll Rand. You can still buy a vane kit for that model for about $60, I think it comes with bearings. Don't forget to use an inline oiler as well as to grease the gun occasionally to prolong its life.

Posted on Feb 29, 2012

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Mac does not design thier own my mac AW480O is a aircat and so is the new one i bought today and along with my 3/8 and my 3/8 air ratchet and the other stuff is IR ask your ask your mac guy he should know and to answere the ? you need to rebuild it or oil it

Posted on Apr 22, 2009

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It is probably gummed up from moisture. You need a good air dryer for your air supply. These models are susceptible to moisture. You can take it apart and clean it yourself without incurring extra expense.

Posted on Jan 09, 2011

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Hi, Mac tools has been around forever, Mac is the manufacturer. Look up mactools.com. This should Fixya!

Posted on Mar 06, 2009

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