POLIWELL 4 Inch Nylon Filament Brush 2 Pack, 4” Abrasive Bristle Cup Brush Set 5/8"-11 Thread, 1/4" Arbor Max 8500 RPM for Variable Speed Angle Grinder, Polisher and Drill, Prep Surfaces for Bed Liner

Excellent product. Performed as expected

Worked great, but wore down fairly quickly

Awesome tool to have for removing rust and other debris from metal. These cut the job time by 80%. Easy to use and very durable. You don’t need to think twice before you buy it.

The media could not be loaded. He's appeared to be well made and priced right The nylon bristles I tried my best to yank them out with pliers and they would not come out. Which is how it should be the last thing you need is one of these bristles flying off while you're using the device. They also come with two adapters so that you can use them in a drill. This is what I would recommend since the maximum speed rating on these is 8,500 RPM and keep in mind most angle grinders run between 10,000 and 12,000 RPM, so while these might be advertised for use on an angle grinder I don't know if that is safe considering the speed limitation on these and the average speed of angle grinders.

High quality well built. Nylon filament doesn't last forever but nothing does. Worked great for removing old paint and prepping our deck for a new coat.

Like the way it works for removing paint and rust.

Works well with a drill on low speed , not so much with a grinder. It will take off light rust and scuff paint. For medium to heavy rust I would use an air needle scaler.

These brushes are super handy and durable. They definitely get the job done.