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Disc grinder accessory question

P

PeterT

Ultra Member
Premium Member
I have a small Makita I've mostly used with 4.5" cutoff discs. The disc is held by a kind of a washer under the disc & on the top side a threaded nut that uses their pin wrench to tighten. Today I installed a plastic body sanding disc. It is threaded for the shaft thread but you can't use either washer or nut which I found odd. Sorry didnt take a pic when installed. The direction it is threaded & motor direction means it is tightening, not loosening. But that was kind of the problem. It was a bugger to remove. It might be specific to my grinder but any input advice on this? Do they all only screw on like this?
 

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We have a nasty old cooking tray that 'may' have seen some unintended extra time in a BBQ. It is 'grandma' generation which means it has seen use but has lots of metal. Today's assignment was to use every power tool in my arsenal. I probably consumed more kilowatts than what could buy a new one for but whats the fun in that? I wasn't after high luster, just getting rid of what has to be the most stubborn temperature seared crud I ever dealt with. Kind of has the aesthetics of a Japanese knife don't you think? LOL
 

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Its looks like you got your pan pretty clean but in case you have never used scotch Brite pad wheels, I think they are awesome for that sort of thing. They won't remove metal like an abrasive/ sanding wheel wheel and get right down to the metal. I use them to clean gasket surfaces like engine heads transmission seals, etc.
 
Thanks. I'm just looking at those online as we speak. I think I'm going to order a few to try. I'm familiar with the babies in Dremel size & they are so nice for removal & blending. Much more conformable to surfaces & nooks & crannies too.
 
Yes the amazon clones are similar to what I was looking at. Comments seem to range between 'don't last as long' to 'almost as good' against the big brand. But for the price difference its worth a shot. You can get a box of 3M discs for a better price but I don't need 100 pcs of 60 grit so I'll dabble for a while.

ps - I finally broke down & ordered one of these. I've got batteries from my other Milwaukee cordless tools & so far I have been very happy with the brand. KMS was cheaper than Amazon but seems like they keep running out of stock in Calgary & its order + pick up type deal. So I dropped another 10$ to have it shipped. I don't have a big compressor to drive a pneumatic. Electric right angle die grinders are actually few & far between.
https://www.kmstools.com/milwaukee-m12-fuel-1-4-right-angle-die-grinder-173018
 
Right angle die grinders work really well with a zip disk for cutting stuff, too. Get the little arbor and 2” or 3” zip disks. Really handy where you can’t fit a full size grinder
 
PeterT said:
These styles have a cup recess & looks thinner in the middle, maybe the washer/nut system will work.
https://www.amazon.ca/Abrasive-Grinders-Flaking-Materials-Removal/dp/B07K19L38B/ref=sr_1_15?keywords=4.5"+disc+grinder+sanding&qid=1588555902&sr=8-15
https://www.amazon.ca/Premium-Zirconia-Alumina-Conical-10-Pack/dp/B07FSY8X57/ref=sr_1_6?keywords=4.5"+disc+grinder+sanding&qid=1588556058&sr=8-6
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I am waiting for the top link the down one I receive those and work very good and the price was cheap Amazon don't like my comment's so they don't show them for the price of one Walter I think I get 10 for the same price. But I wait for the next one purple. This materiel work good usally but they burn fast.
 
I use both types in the links in post #4, extensively. The flap discs are much more useful than a hard grinding disc, they remove metal much faster and leave a better finish. I use them to de-bur, quickly smooth welds and remove weld spatter. The woven discs in the second link are great for removing rust, paint and mill scale without removing metal. I buy the cheap ones on Amazon and they work nearly as well as 3M. The 3M ones are ridiculously expensive. For the 2 inch Roloc discs I use a right angle SnapOn air grinder that I've had for a million years and I still have about half of a box of 100 brown (coarse) 3M Roloc discs that I bought years ago. I buy the cheap fine grit Roloc discs on Amazon, they are not as good as 3M but again way cheaper.

The Milwaukee right angle grinder would be nice, the air powered ones use a ton of air and you need a high volume compressor to keep up with them. Milwaukee seems to have the best selection of different cordless tools. My cordless stuff is Bosch and they don't offer a small right angle grinder but I do have their 5 inch disc grinder that works great.

I also have 3 other corded 4 and 4.5 inch angle grinders. I keep different type discs on each one. A thin cur off wheel on the cordless, a flap disc, a cup style wire brush and a woven disc on the corded ones. The corded grinders are so cheap from PA that I don't use name brand ones anymore. I just buy the el cheapo ones and they last for years. I do have one Makita that is about 40 years old but one of my PA ones is 25 years old and still going strong at 1 fifth the price.
 
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John Conroy said:
I use both types in the links in post #4, extensively. The flap discs are much more useful than a hard grinding disc, they remove metal much faster and leave a better finish. I use them to de-bur, quickly smooth welds and remove weld spatter. The woven discs in the second link are great for removing rust, paint and mill scale without removing metal. I buy the cheap ones on Amazon and they work nearly as well as 3M. The 3M ones are ridiculously expensive. For the 2 inch Roloc discs I use a right angle SnapOn air grinder that I've had for a million years and I still have about half of a box of 100 brown (coarse) 3M Roloc discs that I bought years ago. I buy the cheap fine grit Roloc discs on Amazon, they are not as good as 3M but again way cheaper.

The Milwaukee right angle grinder would be nice, the air powered ones use a ton of air and you need a high volume compressor to keep up with them. Milwaukee seems to have the best selection of different cordless tools. My cordless stuff is Bosch and they don't offer a small right angle grinder but I do have their 5 inch disc grinder that works great.

I also have 3 other corded 4 and 4.5 inch angle grinders. I keep different type discs on each one. A thin cur off wheel on the cordless, a flap disc, a cup style wire brush and a woven disc on the corded ones. The corded grinders are so cheap from PA that I don't use name brand ones anymore. I just buy the el cheapo ones and they last for years. I do have one Makita that is about 40 years old but one of my PA ones is 25 years old and still going strong at 1 fifth the price.
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Yes I've had a cheap Princess Auto grinder for about 20 years and have used it hard. For the first 5 years or so I was mad at myself that I hadn't bought a more expensive better quality grinder from the start, but in the last 15 years or so I've changed my tune to " that grinder was a good buy".
 
6F2F8AD7-3E1D-4036-B9AE-3A2FD093AA92.jpeg

I’ve had a cheap Blue Point right angle die grinder for a lot of years. Today it just didn’t have any power to cut. I ordered in an IR 5102MAX die grinder awhile ago, as a replacement. That thing has some nuts. I like it
 
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