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Old 01-07-2018, 05:40 PM   #1 (permalink)
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Pneumatic die grinders - Which brand?

I'm about to order some die grinders for the shop and looking for some good quality units that aren't incredibly expensive. I'll probably start with 2 90 deg and 2 straight.

How are Ingersoll Rand these days?

I've recently used some Speedaire grinders at work and they seemed to work well and have good power.

Sioux seems to be pretty well regarded and made in USA.

The less common brands like dynabrade and cleco are pretty expensive and more geared towards industrial use. Price on these pretty well rules them out unless I buy refurbished units.
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Old 01-07-2018, 05:41 PM   #2 (permalink)
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I use all IR stuff, never had an issue.
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Old 01-07-2018, 05:47 PM   #3 (permalink)
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I've got a couple IR's as well, just the edge series, never any issues with them.
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Old 01-07-2018, 07:16 PM   #4 (permalink)
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mines a sunex. works well
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Old 01-07-2018, 11:46 PM   #5 (permalink)
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I run CP, IR, and Mac.

Whatever was on sale at the time...
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Old 01-08-2018, 12:16 AM   #6 (permalink)
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Hf are 10-20 each,

My first one lasted 10years.

Hard to spend $200 ona great one when decent ones are so cheap.
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Old 01-08-2018, 07:55 AM   #7 (permalink)
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Quote:
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Hf are 10-20 each,

My first one lasted 10years.

Hard to spend $200 ona great one when decent ones are so cheap.
Yeah I've been flogging on a wore out HF one for years... It's missing the cap on the front and the bearings sound a bit shitty... has a bit of side to side play in the shaft, but I'll be damned if it doesn't just keep working! I always have a carbide burr in it and use it regularly. I oil it rarely. When it dies I'll probably just grab the next <$20 one off the wall of air tools and start using it instead... I might try and open one up and port the internals someday.
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Old 01-08-2018, 08:10 AM   #8 (permalink)
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Hf are 10-20 each,

My first one lasted 10years.

Hard to spend $200 ona great one when decent ones are so cheap.
The more expensive ones usually are more comfortable, quieter, use less air, and/or make more power. I wouldn't be spending $200 either, but I find at least stepping up into the $50-100 range to be worth it.
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Old 01-08-2018, 08:13 AM   #9 (permalink)
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The more expensive ones usually are more comfortable, quieter, use less air, and/or make more power. I wouldn't be spending $200 either, but I find at least stepping up into the $50-100 range to be worth it.
Sounds like a perfect excuse to buy a bigger compressor, install bigger plumbing and crank the pressure
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Old 01-08-2018, 08:17 AM   #10 (permalink)
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Aircat has become my go to on all things air, just picked up this 1hp composite and literally blows the IR stuff I have away:

https://www.summitracing.com/parts/ait-6260
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Old 01-08-2018, 08:30 AM   #11 (permalink)
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Sounds like a perfect excuse to buy a bigger compressor, install bigger plumbing and crank the pressure
I already have a 5hp 2 stage Ingersoll Rand with a 60 gallon tank that does 175psi and 1/2" piping through a high flow regulator and use milton V fittings on the tools/hoses. Not sure I could do much better for a home air system lol

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Old 01-08-2018, 01:00 PM   #12 (permalink)
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I just bought a HF one the other day. Normally $10 and it was on sale for $7 for club members. Waaaayyyyy better than any shitty CampbellHaussfeild stuff you'd buy at tractor Supply, and better than the $30 Lowe's Kobalt grinder that I had before.
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Old 01-08-2018, 01:09 PM   #13 (permalink)
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I use a Harbor freight one at work. it hasn't been oiled in years, still spins everytime I want it to.

sure, you can get faster and better ones, guess it depends on how much you plan on using it and what for. mine gets run probably 20minutes throughout the day almost daily, so not a ton of use but more than a home unit
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Old 01-08-2018, 02:22 PM   #14 (permalink)
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We run a mix of IR, CP and Aircat; mostly 1/2 hp right angle models (50+) and while we have only recently started using the Aircat 6255's we will be purchasing more because while they are similar in price and performance to the other they are much quieter.
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Old 01-08-2018, 02:53 PM   #15 (permalink)
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I picked up a set of Sioux "quiet" ones, and damn if they aren't half the noise of a standard IR or CH.
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Old 01-08-2018, 03:18 PM   #16 (permalink)
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Thanks for all the input.

Aircat looks promising.
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Old 01-08-2018, 08:00 PM   #17 (permalink)
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Quote:
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Aircat has become my go to on all things air, just picked up this 1hp composite and literally blows the IR stuff I have away:

https://www.summitracing.com/parts/ait-6260
aircat gets my vote too. I have a variety of brands for grinders, and I like the aircat the best. It also happens to be about the quietest too.
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Old 01-08-2018, 10:07 PM   #18 (permalink)
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So I tore into that HF die grinder I mentioned above tonight just for the hell of it... cleaned it up, tightened down the gland end where the shaft comes out and that took care of the side to side play of the shaft. Drilled the main passage out to 3/8" and opened up the port on the throttle dealie to match. It's got more oomph now. And is tighter than it's ever been!
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Old 01-08-2018, 10:19 PM   #19 (permalink)
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So I tore into that HF die grinder I mentioned above tonight just for the hell of it... cleaned it up, tightened down the gland end where the shaft comes out and that took care of the side to side play of the shaft. Drilled the main passage out to 3/8" and opened up the port on the throttle dealie to match. It's got more oomph now. And is tighter than it's ever been!


i'm tempted to give it a whirl
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Old 01-08-2018, 10:20 PM   #20 (permalink)
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Get front exhaust type, regardless. rear exh blows the crap all over you. I have several IR #307B that I'm happy with.

Last edited by david brode; 01-08-2018 at 10:23 PM.
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Old 01-09-2018, 05:56 AM   #21 (permalink)
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So I tore into that HF die grinder I mentioned above tonight just for the hell of it... cleaned it up, tightened down the gland end where the shaft comes out and that took care of the side to side play of the shaft. Drilled the main passage out to 3/8" and opened up the port on the throttle dealie to match. It's got more oomph now. And is tighter than it's ever been!

Got any flow bench numbers?
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Old 01-09-2018, 02:07 PM   #22 (permalink)
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Had a cheap campbell hausfeld from walmart. lasted about a week at work before the motor blew up in it. It got oiled fairly properly.

I visited a head porting shop that used electric die grinders. 8 hours a day, several of them going all the time doing heads. Spendy though.
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Old 01-10-2018, 09:16 AM   #23 (permalink)
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Mostly old IR pneumatic tools here, bought used from a friend who used them for 20 years. Have one new 3/8" ratchet, one new (composite) 1/4" drive impact and one 1/2" drive impact from them as well.

Would not hesitate to give IR more of my money. Extremely high quality tools.
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Old 01-10-2018, 11:16 AM   #24 (permalink)
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Extremely high quality tools.
Things may have been different back in your day grandpa but today they're Chinese junk, basically the same thing as HF in a different box.

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Old 01-10-2018, 11:25 AM   #25 (permalink)
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Things may have been different back in your day grandpa but today they're Chinese junk, basically the same thing as HF in a different box.

Did you miss the part where I said I have three newer IR pneumatic tools?

I like newer IR tools as well, but I don't use them every day either. Are they as skookum as the old school tools? No, not quite, but they're a far cry from HF IMHO.
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