Final answer:
Transform plates are the type of tectonic plates that grind past each other.
Step-by-step explanation:
The type of tectonic plates that grind past each other are Transform plates. Transform boundaries occur where two plates slide horizontally past each other. One example of a transform boundary is the San Andreas Fault in California, where the Pacific Plate and the North American Plate slide past each other.
Learn more about Tectonic plates