I am a remediation and abatement contractor to put my planned use into context. I purchased this product to supplant my stainless steel cup brushes. I really like how well the stainless steel cup brushes work, but they are do have definite risks to work with. You're behind a power tool, pushing one of those into your work piece. Little bits of wire break off (!), they can puncture your fingers while you're handling or grasping them and generally become very fragile all of a sudden towards the end of their usable life. So I purchased this having read the details about the product and how it works (flexible bristles impregnated with abrasives).