Symbol 1503 from ISO 7000 - Title/Meaning: Grader blade Function/description: To identify the control for the grader blade.
Additional information: 
The symbol is viewed from the perspective of a person looking forward along the axis of the machine.
Own work using: iso.org/obp/graphics/grs/44821b9e-6b69-47c8-9678-aefe4702d70b 200.png
Vectorization:  Mrmw