NEIKO 11257A High Density Jumbo Premium Zirconia Flap Disc | 4.5" x 7/8-Inch, 40 Grit, Bevel Type #29-10 Pack

I recently purchased the NEIKO 11142A Zirconia Flap Discs, and I have to say, they exceeded my expectations. The quality of these discs is impressive—they're durable and hold up well under high pressure and heat. I used them for grinding and sanding metal, and they performed flawlessly, removing material quickly and leaving a smooth finish.The angled Type 29 design is particularly useful for shaping edges and grinding contours. It feels like the discs were designed with precision in mind. The fiberglass backing plate is another great feature—it absorbs vibrations and prevents smearing, which makes the whole process smoother and more efficient.Overall, these flap discs are a fantastic value for the price. If you're looking for reliable and high-performing discs for your angle grinder, I highly recommend giving these a try.

These flap discs are excellent quality. They cut smoothly, last longer than the cheaper discs I’ve used, and don’t wear down quickly even on tougher metals. Great value for the price, and they fit my grinder perfectly. Highly recommend for anyone doing metal fabrication or welding work.

Excellent, perfect for sharpening mower blades quickly and efficiently.

Good for the price

These disc work great, and last longer than I expected.

I worked over 30 years in industrial welding and pipe fitting using industrial quality sanding disks. I was amazed that these very inexpensive sanding disks worked just as well. Much better than expected at a bargain price. AAA+

These are descent quality discs. So far I've only used one, but no issues. Some reviewers mention it making blue dust which made me hesitant to buy these. I did not experience that at all, just normal metal dust. They have good abrasive qualities and cut down weld material quickly, slightly above average for a flapper. Probably not as long lasting as some more expensive discs but wearing reasonably well. I think they are a good buy and get the job done.

I use these on my M18 Milwaukee angle grinder to sharpen my mower blades and large shredder machine blades. Works great and the flap disc's last a long time. I've sharpened over blades so far and the disc is still holding up just fine. Still using my 1st disc!