3M Flap Disc 769F, Type 27 Quick Change, 80+, 4-1/2 in x 5/8-11, High Performance Abrasive, Ceramic Precision-Shaped Grain Grinding and Finishing Disc, Carbon Steel, Stainless Steel

These are the best flap discs. They’re durable, fast cutting, resist overheating, long lasting and keep cutting until the disc is gone!All the other reviews for these below 5 stars seem to indicate that buyers are not receiving 10 discs only—nothing related to poor quality flap discs.

Being leary of any all purchasing on SCAMAZON lately, I was worried about more counterfeit junk. I was stuck on a job 1350 miles from home and 2 hours away from an amzon drop box and no supply house within 300 miles had anything in stock i ordered these. At nearly half the price of other flap discs at the big box supply stores these things are criminal. They tear thru heavy mill scale without gouges and rippling the steel, ugly welds who cares, simply laid to rest in seconds flat. Figured the 10 pack would last the job and i would be headed home. Boy was i wrong. Still had 4 left brand new. Yeah, these are on the regular re order list for the shop and trucks. Contacted 3m to match up this product line with all our other belt and disc needs. They got robbed, these are gold for the price of tin.

very well made super sturdy, i like the screw on style quick and easy. for some reason i thought their was 2 of them per order. the picture threw me off i suppose. still its worth the price for 1 i’ll buy them again. if you need a fine grit semi polishing disk you could do much worse for your money then this disk.

Amazon sent me only one and at first the “customer service agent insisted it was $52.25 for one disc. The second guy realized when it says $5.23/Item, you should get 10. Good price and quality discs but a potential hassle. 3m should update the listing to make it simpler for Amazon employees to fulfill.Second and third attempts at delivering 10 discs instead of 1 were unsuccessful.BUYER BEWARE

This is the disc you want. Cuts cleaner and way longer than the other flap disc's. You get better performance for a longer period. This makes your grinding more consistent throughout the life of the disc. Buy in 10 packs to get pricing lower.

Removing mill scale while maintaining a flat finished surface is apparently a hard job for discs, and this one does it spectacularly.I find the discs wear better when the tool they’re on doesn’t suffer from a loss in RPMs when pressure is added—the wheels work best on a 15 amp Metabo Grinder I bought a few months back.In any event, try these for mill scale removal! Best bet I’ve found so far. Works well for light shaping. For heavy shaping, buy heavier cutting discs (cubitron II offerings, Walter Turbo series, etc).

I have tried all major brands including the German ones. Nothing moves metal with the amount of control these due. They cut so efficiently you use less pressure so you do not gouge your base metal.1/18/24 These things are truly amazing. We are still wearing through these. They last almost twice as long as the German trimmable ones.

These discs are great! Cheaper than HF and Diablo and they cut and wear like sin. Still using the first one from the ten pack and it still has plenty of life to go.