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06-14-2012, 05:14 PM
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Join Date: Dec 2005
Location: San Pedro
Posts: 1,013
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Suggestions please New Bench Grinder
I want to purchase a new bench grinder for construction of my RV-12, I am requesting to know from the group, which bench grinder do you recommend that I buy? My budget is around $250 but can be stretched a little. I can't afford either Harbor Freight or Palmgren. Sears is good enough for me in the past but I am unimpressed by the newer Sears grinders that I looked at in the store. Used 'quality old' would be great and I will travel to pick up a good tool but I don't want to rebuild any more tools for awhile - remodeling my house is more than enough right now.
So, what do you all recommend? I would 'like' an 8" grinder. Need to run a grinding wheel on one end and a deburring wheel on the other. Brand name and model number would be good if possible. Thanks very much for your thoughts and answers. Ed 
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06-14-2012, 05:21 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Search the forums.
This was brought up not too long ago, try searching-----some good info was presented.
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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06-14-2012, 05:25 PM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010
Phase 1 done, 2/4/2011 
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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06-14-2012, 05:25 PM
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Join Date: Apr 2005
Location: Salt Lake City
Posts: 171
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i bought the 6 inch ryobi at home depot $45 bucks. I'm not sure any bench grinder is worth much more than this as it relates to the RV need.
Model BGH6110
Had an 8 inch, but mandrel didn't fit the 6 inch 3M deburring wheel, so rather than cobble together an adapter, just bought the 6 inch.
minimal use of the grinder side.
It's still going strong after an embarassingly slow build -10 project - now at 6 years, but finally getting close...
Phil
Salt Lake City
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06-14-2012, 05:32 PM
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Join Date: Feb 2010
Location: Perth, Western Australia
Posts: 1,647
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I'm building an RV-12 and bought one of these for about $125. Fitted it with a Scotchbrite wheel. Very useful tool, and probably cheaper in the US as well.
http://www.ryobi.com.au/Products/Pow...inders/HBGL650
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rgmwa
RV-12LR 912ULS
120346
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06-14-2012, 05:57 PM
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Join Date: Aug 2009
Location: Newport, RI
Posts: 705
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Harbor freight
Sells an inexpensive one. I own it and no issues.
Have a scotch wheel on one side. Can not imagine
Building without one
__________________
Al Girard, Newport, RI
N339AG
RV-9
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06-14-2012, 07:26 PM
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Join Date: Oct 2010
Location: La Feria Texas
Posts: 3,822
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I had on hand the Harbor Freight one I think they call a polisher, has long shafts, 8 inch hi speed. I just put a scotchbrite wheel on one end, left the grinder on the other end, it has served me very well thru my build. Highly recommend it.\
This link should take you to the one I have: http://www.harborfreight.com/8-inch-...fer-94327.html
Last edited by DonFromTX : 06-14-2012 at 07:28 PM.
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06-14-2012, 07:39 PM
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Join Date: Nov 2005
Location: Davis, CA
Posts: 1,156
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consider used
The more I've used inexpensive made-in-China consumer grade power tools, the more I've come to appreciate some of my old made-in-USA stuff. There are lots of grinders, drill presses, band saws, etc on ebay at any given time. There are also used tool vendors out there with their own sites. I just had a look at ebay. There are several used bench grinders on there that look attractive, for much less than your budget.
__________________
Lars Pedersen
Davis, CA
RV-7 Flying as of June 24, 2012
960+ hours as of June 30, 2020. Where did the time go?
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06-14-2012, 09:19 PM
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Join Date: Mar 2007
Location: West Texas
Posts: 282
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Do you want a bench grinder or a bench grinder?
All bench grinders are not really bench grinders. Some are polishers like the previous post mentioned. Some are tool cutters.
Here is the standard orange 8" HF bench grinder I bought years ago. I made the stand from heavy pipe and a truck rim. (I would design it differently now.)
Like a lot of stuff from HF their bench grinder is a work in progress but it actually is a decent tool for the money. The HF grinder has marginal wheels and the rests are just flimsy stamped metal. Once you put on good wheels and make better rests you have a fairly decent grinder for a lot of metalworking and machining tasks. Even without spending the extra bucks it will still work.
A decent grinder is a welcome addition to any shop but it is not the ideal tool for the Scotchbrite polisher and other things related to building an RV, IMO.
You can get an old 110 volt motor that runs at 1750 rpm and it will work better. Any one of the cheaper 4"x21" belt sanders will work great for trimming aluminum. My 2c anyway.
Dave A.
6A build
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06-16-2012, 11:25 AM
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Join Date: Oct 2008
Location: Fresno, CA
Posts: 479
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Just check Craigslist, in So Cal you can probably find a bunch of older high quality ones for very cheap. Use your savings to buy the scotchbright wheel and a bunch of other stuff
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Rick from Fresno
RV-7A
The art to flying lies in learning how to throw yourself at the ground and miss.
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