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Old August 27th, 2011, 06:55 PM   #1
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Default pneumatic die grinders.

Not sure if this should be here or in the pub but I would like some opinions on grinders.

I'm currently installing a set of poly performance leaf hangers. About halfway through the passenger side I realized a $11 dollar HF die grinder with a HF cut off wheel is not cutting it (no pun intended). I have a 120 psi 60gallon Devilbliss and I can stop my grinder with my hand. So needless to say i need a real grinder.

I'm looking at Craftsman, Ingersoll Rand, and Chicago Pneumatic. All in the same price range but is any one better than the other? Or is it the same ole deal of there all the same tool made in the same place with a different name tag?
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Old August 27th, 2011, 07:02 PM   #2
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the harbor freight one is probably a chicago pnematic or central pneumatic tool any way. die grinder aren't very torquey and use a ton of air so you may be using all your capacity up from your tank. Are you sure your regulator is set properly and that the control valve on the die grinder is open all the way? some of those tools have a built in regulator to adjust flow.
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Old August 27th, 2011, 09:18 PM   #3
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I believe the regulator is fully open, it's brand new (to me) so Im not totally familiar with her. Also I have not checked the grinders regulator never even thought a Harbor Freight grinder would have one. I may have jumped to conclusions on the fact that it HF and that's the reason it took forever to cut one bracket off. I'll go give it all a check over. And thank you sir.
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Old August 27th, 2011, 09:39 PM   #4
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If you do buy another pay closer attention to the RPM it turns. 22,000 is a common high speed unit. the faster it turns the more it will generally cut. The type of chuck that they have will be part of the cost. I have not had one that used a standard chuck key in a while but I like those best.

I believe IR makes several differant grades of these typically the more you spend the better of a unit you get, I would not expect an 11 dollar unit to even work, let alone work good.
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Old August 27th, 2011, 09:47 PM   #5
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buy electric..they work better anyways
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Old August 28th, 2011, 12:16 AM   #6
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Quote:
Originally Posted by High Center Hancho View Post
buy electric..they work better anyways
x2 I hate pneumatic tools
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Old August 28th, 2011, 05:24 PM   #7
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I never even thought about an electric grinder that inset the standard 90* grinder. Looks like you guys made up my mind for me haha.
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Old September 2nd, 2011, 08:32 AM   #8
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yep get a couple of the HF electric grinders at 10-15 bucks each and put a grinding disc on one, cutoff disc on the other... throw em out when the smoke comes out (my last pair lasted 8 years of heavy use :) )
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Old September 3rd, 2011, 10:15 AM   #9
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Dotco or Dynabryde.

Yep they are pricey..yes they are 10000x times better than all but the very top shelf IR. you might be able to stop one with your hand but it's gonna hurt.

I have 3 Dotco air tools...all of them have been worked very hard for many hours and they are all about 15 years old. I finally got to the point where I need to rebuild my 90* degree grinder last year.
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