Symbol 0306 from ISO 7000 - Title/Meaning: Polishing wheel 
Function/description: To identify a polishing wheel (for example, on a control which operates the polishing wheel).
Own work using: iso.org/obp/graphics/grs/ddcbbbc8-735e-4ff6-aca4-50eeb2217af7 200.png
Vectorization:  Mrmw