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Old 12-04-2012, 05:26 PM
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Default Harbor Freight #95504, 4" Pneumatic Grinder

Our long lost member, Dave (chengdave2003), finally showed up yesterday to have a semi-secret meeting, we went out for the Chinese buffet and the side excursion to Harbor Freight.

The buffet was excellent as usual, all SFT was discussed following all known Protocols (Hey, Dubby, where are the new ones?? you know the Lubbock Protocols of 2012!! We're waiting!!)

The side trip to Harbor Freight was an adventure, Dave was betwixt buying and not buying a few items, finally he just said NO!!

Now, down to the meat of the subject, I picked up a Central Pneumatics #95504, a 4" pneumatic angle grinder. It was on sale for $29. I took it to the shop, installed the required air nipple, a real good shot of Marvel Mystery air oil, the ran it for about 5 minutes straight, and it was smooth and sounded great. Then the problem, there was no clamping nuts, to hold the grinding disc in place, so back to Harbor Freight. They gave me the required nuts from another grinder and I was going back to the shop. I tried the unit today and it appears to have guts and works great.

I stopped at the local industrial supplier and after rooting around in the misc tool part section, found a clamping set to allow me to use 3/8" arbored grinding discs. Then bought the entire inventory of the 3/8" arbored grinding discs at a severe discount (they were happy they were going out the door).


1 - the grinder
2 - the grinder
3 - the set up that allows the use of 3/8" arbored discs
4 - the set up that allows the use of standard 5/8" arbored discs
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Last edited by platypus20; 12-05-2012 at 01:03 PM.
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Old 12-04-2012, 07:54 PM
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I have a American one that size but it takes regular sized grinding wheels. Once you get the guard off you can get into a lot of tight places.
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Old 12-04-2012, 10:42 PM
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I know Dave from another forum, and I must say he is a fine fellow.
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Old 12-04-2012, 11:05 PM
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I have never used a pneumatic grinder, are there any advantages over an electric grinder?
Thanks,
Nick
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Old 12-04-2012, 11:08 PM
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It is harder to get electrocuted in a wet environment with a pneumatic grinder.
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Old 12-04-2012, 11:27 PM
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Now Norm....that might depend on what you are grinding.
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Old 12-04-2012, 11:43 PM
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I didn't say it was impossible.
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Old 12-05-2012, 01:13 PM
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Quote:
Originally Posted by kiwi View Post
I have never used a pneumatic grinder, are there any advantages over an electric grinder?
Thanks,
Nick
We have to use them inside the boilers, working inside a steel environment, they frown on the use of electric tools.

They also don't get hot, they usually lighter in weight and can have a high hp/weight ratio, but they need a stiff air supply, a stiff air hose and can be quite noisy.
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Old 12-05-2012, 05:09 PM
o7oBaseMetal o7oBaseMetal is offline
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You aren't in Greeley, CO by chance are you? The reason I ask is because the HF is right next to the Chinese Buffet...
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Old 12-05-2012, 08:08 PM
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You aren't in Greeley, CO by chance are you? The reason I ask is because the HF is right next to the Chinese Buffet...

Nope, Central New York State, at times it seems like you can't drive 10 miles in any direction, without passing at least 1 Chinese buffet. Here the buffet is about 3/4 of a mile away from the Harbor Freight store.
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