flap disc dia * thickness*bore: 100*12*16 max speed:80m/s abrasives: A/C grit size:p60-p600 flap discbacking clothbond R/RApplication: High grinding effciency, good anti-fluctuation, well disperse heat. Suitable for electrical or pneumatic angular to remove rust, grinding paint, welding vehicle manufacture, heavy duty machinery and etc. flap disc