PFERD 67258 POLIFAN®-Curve Radial Type Flap Disc - Ceramic Oxide, 4-1/2" Diameter, 5/8-11 Thread, 13300 RPM, 60 Grit Welding Accessory and Angle Grinder Attachment

Holding up well, these are much better than a normal flap disc at cleaning up welds on inside curves. Highly recommended.

Great disc for grinding welds, last a long time. Shape makes blending easy.

Good for grinding inside corners

The disk works great but use it only when needed for tight inside corners. I gave it four stars because of the price.

I got both sizes available medium and large. Both have a different radius for how large the fillet is. Medium will be more versatile across the board for me with TIG. For stick or multi pass fillets I think large will be good. The 60 grit is a bit aggressive for a finishing pass, but sure removes material fast. It leaves some grind marks behind as you'd expect from 60. I was able to get a reasonably good finish, and then did a bit of finishing with a flap disk and hand with scouring pads. I wish they came in 80-120 grit on here too, I'd buy them as well

It didn’t last very long. I had some weld beads and I knocked the sharp pieces off with a grinding disc and then I used this for about 2 minutes. It was wearing down pretty rapidly. I like the shape of it, but I’m not sure it wears any better than the harbor freight flap, discs.

I know Pherd is expensive. But these last and last. Will save your bacon on a finish weld that shows. Wanna make that weld that shows invisible. You need this.

Good, but came only in a plastic bag

I decided to invest in a more expensive disc as there ones I normally buy were out of stock. The disc didn't last as long as the cheaper ones. Quite disappointed. Very poor value for the usage. I was feathering steel welds.

Works where flat wheel can’t access

Funziona abbastanza bene. Tre stellle perché le foto sono ingannevoli: l’offerta è per un solo disco, non due.. il che porta anche il prezzo un po’ troppo in alto considerando che in fondo è materiale di consumo..

Thought that I was getting 2 discs like shown in the picture. You only get 1 disc !!! Very misleading advertising.

Produkt ist sehr gut.