SI FANG 10Pcs 4''x5/8'' Premium High Density Calcined Aluminum Oxide Flap Disc 60 Grit
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You can get what you need at any welding supply store. They'll also be available on Amazon or E Bay.
If you prefer the threaded type, a 5/8-inch drill bit will suffice.
The grit number is 240, and the number 200 is currently unavailable.
I don't think it's a good idea. They're only good for a few days. To build a wall of any size, you'd need a lot of them, and I imagine that the concrete would wear them down even faster than smooth metal.
Selected User Reviews For SI FANG 10Pcs 4''x5/8'' Premium High Density Calcined Aluminum Oxide Flap Disc 60 Grit
The Nekita 80 grit leaves no arc scratch patterns on the carbon steel surface, but this one does, which is odd and leads to the search for 4. 5 in but only showed 4 in, which is pointless and a waste of my time; not as fine as stated; and difficult to use because the rotating nut hits the surface more easily, causing the grinder to be set at an unfairly high rev! For this reviewer flap disc, we need a new QA program. Please state unequivocally that this is not a 4. Prejudiced review checkers, please state unequivocally that this is not a 4. If you put five people in a room and don't show up, it's because you're looking for four people 5 in. It might work for a four-inch grinder, which isn't common.
I wanted something a little softer than the Black Hawk Surface Conditioning Blue - Fine (4- 1/2" x 7/8" x 1/2" x 7/8" x 1/2" x 7/8 After getting along fine with the Black Hawk, I tried the 320 wheel, and the scratch marks were much more noticeable. I returned to the Black Hawk fine to double-check, and the scratches were noticeably finer. br>br>Let's say the 320 wheel has a grit of around 120.
I've repurposed a lot of materials and I always use flap discs, whether they're made of wood or metal. I used to go to the neighborhood store and pay anywhere between $5 and $10. There are eight on each disc. I now purchase them from Amazon for around $1. Each one costs $60. They are of good quality and will last a long time.
So, first and foremost, these are 4 inch, not 4 inch. I thought it said 4 inch, which maybe it said in the description, but I thought it said 5 inch. 5". Anyway, that's not a big deal; however, the fact that these only last 5 minutes before toasting is, especially considering how expensive these are. Another amazon seller sold me a pack of 20 flap discs for $10, and they lasted twice as long! I don't usually write negative reviews, but I thought this product was especially subpar for the price.
40, 60, 80, and 120 were the only numbers I came across. To sharpen my pickaxe and ax, I needed higher ones. It really works. In addition, at a local store, each cost around $8. This is a fantastic opportunity!.
I only used it for a short time to remove some weldings and all the details on my trailer fender (some welds in paint flaking), but it worked pretty well so far. As I previously stated, I only use one, so I believe it is a good value for the money.
These are being used to clean up the frame of an old Jeep. They attach to an angle grinder and last much longer than I had anticipated. They're great for removing old paint as well as smoothing out bumpy welds. They've made me very happy.
I wish they were 4-packs, because they work just as well as the Harbor Freight version at a much lower cost. 1/2" don't care for the HF product, but they're fine otherwise.
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