SITBRUSH TU85 85mm Twist Knot 0.5 Cup Brush For Angle Grinder M14, 0252 - Robust, aggressive and with the highest possible level of operating safety. Mountable also on stationary installation, manual, automatic and CNC. TU85 brushes in Iron and Stainless Steel are among the best sold and appreciated brushes from the SIT customers all over the world. Applications: Heavy Duty Cleaning , Waste removal, rust, paint and thick encrustations on surfaces (better if regular) of any material. M14 0.5 Steel Wire Twist Knot. MAX RPM 8500