- Action: Cleaning, Deburring - Tool: Grinder - Surface: Stainless, Steel - JAZ High Speed Brushes have been specially designed for low weight and high speed mini-grinders (11,000 R.P.M.). - High removal capacity and efficiency at high speed performance. - Comfortable use and elimination of human fatigue. - Special design allowing access to angles and flexible performance on any surface. - RPM max: 13000