Rated for max 8500 RPM, this abrasive nylon bristle cup brush fits common 1/4 inch (6mm) electric drills using the included shank arbor and 5/8"-11 thread angle grinders or polishers. Operating within the recommended speed prevents bristles from flaring excessively and ensures better tool control. Light grinding and flexible performance come from resilient nylon filaments that bend around imperfections instead of snagging on protrusions, making them perfect for brushing uneven surfaces and light-duty conditioning. The 4 inch cup shape efficiently covers large areas such as truck beds before liner application. Safe and reliable nylon grinding brush offers a gentler alternative to traditional wire brush, generating no , fewer broken wires and reduced risk of gouging while maintaining long service life. Suitable for both wet and dry applications, it helps keep work areas cleaner and . 3 pack nylon brushes set features 4 inch abrasive cup brushes with tough nylon filaments impregnated with coarse abrasive grains, delivering aggressive yet controlled cutting action. Ideal for deburring, edge blending, cleaning parts and improving metal or wood conditions in workshop or garage. Wide applications include removing rust, paint, scale and oxidation, as well as cleaning, deburring, finishing and preparation on wood, steel, aluminum and other metals. This high-performance industrial brush tool works effectively on both face and side surfaces for automotive, fabrication and DIY projects., Weight: 2.23438502537 Pounds, Manufacturer: NONDK