HOYIN Wire Cup Brush-Knotted Cup Brush for Grinders
Machined Surfaces, Demanding Quality Specifications, This Twisted Knotted Wire Cup Brush, Hoyin Wire Cup Brush Knotted Cup Brush
Results of our analysis:
We analyzed 1,759 reviews for 14 products in the Abrasive Cup Brushes category.
We then analyzed 53 reviews for this product. Of these, 37 reviews were recent.
Around 88% of reviews were positive and about 13% were negative.
Final Score:

7.72 out of 10, based on these factors:
What buyers say about HOYIN Wire Cup Brush-Knotted Cup Brush for Grinders
The product is very robust and high quality. Make sure you have a tool that is the correct size for the brush.
It is 3.5 inches in diameter when used on my angle grinder, and has the usual odd wire sticking out here and there, but not an issue.
The brush was in good condition after about two hours of use, and it did not lose wires or play out much.
I would definitely buy these again. I was glad I bought 3. It was a good value for the price.
I was pleased with the job done and the quality of the work.
Common Questions
Is it possible to mount a cup wire wheel to a right angle grinder?
There are less than 4 wheels that can be mounted to a 4" Makita right angle grinder.
Will it be able to go on a black and decker grinder?
If it has a 5/8in-11NC thread and doesn't exceed 12,500rpm, then it should fit.
Is it possible to supply as many as 20 pieces of Cup wire brush of 9” (230mm)?
The max size of the cup wire brush can be 150mm.
Will this work with my 4 1/2 inch angle grinder?
Yes. It's compatible with the 4 1/2 in anagle grinder with a 5/8" English system standard.
Is it possible to mount a cup wire wheel to a right angle grinder?
There are less than 4 wheels that can be mounted to a 4" Makita right angle grinder.