Steve A Kabrehl
Reviewed in the United States on January 27, 2025
These purple silicon carbide discs absolutely eat mill scale. I used it today fit the first time but it removed rusty mill scale nearly instantly and showed no signs of loading up. Any other disc, sander or abrasive would have been glossing over the surface by the time I finished what I did today.I'm teaching myself to weld, these were a great find. I'll still use vinegar for longer prep times, but these are a great alternative that gives instant results.For stripping steel to a clean surface I definitely recommend these.
Mike
Reviewed in the United States on January 15, 2025
All I can say is WOW!!! These things are awesome. As you can see I used them to take mill scale off of 5”x5”x8’ steel. One disc got four of them 8 footers done plus a couple of small things. Them cheap ones won’t even take the mill scale off. So from now on these are the only ones I’m buying
Hexxys
Reviewed in the United States on September 17, 2024
Removes mill scale from hot rolled mild steel better than anything else I've ever used. Also, the removed material doesn't seem to build up in the media like it does with sandpaper and the like.
Melissa J.
Reviewed in the United States on September 13, 2024
It’s actually a really nice product to use for removing milk scale, but based on how quickly it wears out, it really should be in the $5-7 range to be competitive with competing options. I think this will be an occasional specialty use disc in our shop, but it’s simply too price prohibitive to be a daily disc.
blackfamily
Reviewed in Canada on October 26, 2024
Works like a champ to remove rust, mill scale and paint.
Cassandra Banks
Reviewed in the United States on October 20, 2024
Purchased this for removing mill scale… did an excellent job..highly recommend
Alessandro
Reviewed in Italy on April 20, 2024
Ho acquistato qst disco dopo che mi sn informato tramite video vari e dopo averlo usato effettivamente è un buon prodotto, fa il suo lavoro, elimina la ruggine senza mangiare il materiale.Costicchia un pò e per ripulire una fioriera da tutta la ruggine ho fatto fuori un disco (pensavo mi durasse un po fi più) mah è venuto veramente bene, ora ne dv fare altre 4😄, sicuramente lo ricomprerò
Dylan Stewart
Reviewed in the United States on April 15, 2024
This is the best thing I've found to remove mill scale for tig welding! Twice as fast as a flap disc but it is a bit pricey
Luis F.
Reviewed in Mexico on July 18, 2023
Funciona a la perfección para quitar óxido y pintura así como algo de salpicaduras por soldadura, da brillo y pule el metal, eso sí, no se debe ocupar en las orillas con filó porque se desgasta muy rápido, de ahí en fuera es muy buen producto, lo compraré más adelante de nuevo!!
Customer
Reviewed in Canada on March 31, 2023
The only pads I’ve tried that thoroughly clean metal without marring the surface like flapper disks do. And they don’t seem to clog up as much as other brands. Pricey but worth it.
Paul G
Reviewed in the United States on June 19, 2022
Purchased both the green and purple discs to remove paint and rust on a trailer repaint project. The green discs work very well for primarily paint removal not “coarse” enough for rust. The purple discs worked very well at both paint and rust removal. Lighter rust came off very easily, the heavy, deep pitted rust took more effort but removed enough to make other rust removal effective. With some effort too, mill scale on sheet metal came off. The pads last for a pretty long time even while taking off heavy rust. Very impressed with the 3MCubitron abrasives, I plan to try the belts next on my 2” x 48” belt sander.
Jejeamazoniaco
Reviewed in Mexico on September 17, 2021
Nunca pensé que este tipo de discos removiera tan fácil el óxido en metales me sorprendió al utilizarlo, estoy muy satisfecho y si problemas se le adapta a cualquier amoladora de 4" Pulgadas volveré a comprar otras 2 pza.
Jeff
Reviewed in the United States on April 21, 2021
Works Great on Mill Scale, but doesn't last long. This wore out very quickly. That being said, it takes off heavy mill scale very quickly while leaving a smooth surface. Much smoother and quicker than using a 36 grit sanding disk. But it didn't last very long. I love using it, but for the high price, I'm not sure I'll be buying more, except for when I need the nice smooth surface.