Assertion: rotor's hole | /r/HasProperty | drilled
Facets:
Source sentences:
text: Since modern brake pads do not present this problem as much as older ones, and due to the fact that brake rotors can eventually crack where holes are drilled, cross-drilling is no longer done on racing vehicles.
text: The main feature of these types of brake rotors is that the holes are drilled all the way through and spread over the entire surface of the rotor.