PFERD Ecap encapsulated hollow Centre stem mounted end crimped wire brush provides excellent tip control, reduced flare and aggressive brushing action. Ideal for removal of rubber flashing. Suitable tool drives for straight grinders, flexible shafts. Specification: Diameter (Inches): 3/4; Outside Diameter (Inches): 7/8; Shank Diameter (Inches): 1/4; Trim Length (Inches): 7/8; ECAP Grade: E3; Recommended Speed (RPM): 7,500 - 11,200; MSFS Max. (RPM): 15,000.