Abrasive: Aluminium oxide A General use on all materials. Mounted flap wheels F 3010, F 3015, F 4015, F 4020, F 5020, F 5030, F 6015, F 6020, F 6030, F 6040, F 8030, F 8040 and F 8050 comply with ISO 3919. For safety reasons, the maximum permitted rotational speed indicated must never be exceeded