Mornajina 10 Packs 4-1/2 x 7/8 Strip Discs Stripping Wheel for Angle Grinders, Paint Removal Disc, Rust Stripping Wheel, Remove Scaling and Oxidation(Purple)

These grinder discs are a must have to remove paint before welding. They remove rust and paint with ease. They work on any standard grinder.

These are Chinese made, and last 3 mins on concrete. I’d need 100 to finish my small porch. I’d save my money if I had another chance.

This is a pack of 10 generic purple stripping discs packaged as 2 boxes of 5 discs. Theyre mainly used for stripping paint and rust without damaging the underlying surface too much. Neither the discs nor the packaging have any markings whatsoever. I measured the discs at 4-1/2 diameter, 7/8 arbor, 1/2 abrasive thickness and 3/4 overall thickness. The product listing has different specs in different parts of the listing which is confusing to say the least. Most concerning is the max RPM which is listed as 12500 in one part of the listing but only 11500 lower down. My angle grinder only does 11000 RPM so these will work fine. When fitted to my grinder the discs almost touch the inside edge of the guard. They also are thicker than the guard and extend out past it about 1/8. That allows them to be used across their entire surface but makes me worry what might happen if one comes apart in use. I tried them out on some painted scrap wood panels and old rusty metal frames. They made short work of the painted wood exposing smooth bare wood in literally seconds. The rusted metal cleaned up just as quickly, and unlike sanding discs didnt leave flat spots. These are now my go-to discs for cleanup work. The price on Amazon is currently $40 for 10 which is about the average cost per disc for this type of product. Assuming they all perform similarly to the one I tested this will be a good value overall.

I bought these discs to remove rust from some metal plates. They work okay but wear very fast,therefore the 3 star review. I will try another brand on my next order.

I powdercoat a lot of hitches and need various types of medium to get into all the crack and crevasses before the final sandblast to prepare for shooting the powder. My grinders are Dewalts and they are a perfect size with one exception. The thickness of the pad makes it very difficult to tighten the nut. I have a replacement nut set that works really well for this. I got it here on Amazon (https://www.amazon.com/gp/product/B07QN53R1Y/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1). Its very reasonably priced and may save you some issues. As for how long they last?? Well I have to look at them as a needed consumable. I go through about 50 to 100 a year but these save so much time it is worth it. I took a picture of the before and after of one of the hitch bars. This literally took 5 minutes for all sides. Time is money and these are my favorite tools for removing the slag, coatings or rust from flat surfaces. I hope you find this review helpful. When I saw these with added savings for a ten pack I jumped on it.

The abrasive pads are not concentric with the backing disk. When used, the grinding assembly is out of balance and vibrates. Sloppy assembly.

I am Stripping the paint off my house and we have been going through paint discs like water. This brand is well-made and lasts a lot longer than the other. Highly recommend.

5stars

Pardon my mistake for not getting the before picture (obviously the after is now useless, opps). Ive been driving the same Jeep in the Midwest for almost 21 years, so there is rust, no matter what i do. Before any repairs, i always have taken care of old rust and in the past, have used the strip disks that attach to the drill. Not no more. Wow, between the combination of using the angle grinder and these disks, i was able to get thru what i needed to in a shorter amount of time. Very impressed and they didnt break apart or deform when i used them. I thought the 10-pack was a good value when i saw it, especially considering what i have spent on single drill discs. Granted, its probably gonna take me a long time to use them all.

If youre looking to clean a surface of old paint and rust before you weld or paint it, these are fantastic. Theyll make short work of it and fit my little off brand grinder with no problem. These are a good value- but use as light a touch as you can in order to get the most out of them. 5 stars, will buy again.