Max 4500 RPM. Abrasive cup brushes and nylon wheels mounted on 1/4" hex shanks, fits any drill or screwdriver This adaptable nylon brush is for cleaning delicate parts for automobiles, metalwork, carpenters, reconditioners and DIYers, without worrying about damage or scratches. Commonly used for surface preparation, deburring, light paint removal and coatings. High durability brush, strong and sturdy, long service life, shorten the polishing time and improving equipment efficiency., Weight: 0.68894456875 Pounds, Manufacturer: Rtxbvg