Question

what are two of the most important pieces of ppe when using a grinder?
ear protection
gloves
hard hat
rubber footwear
safety glasses
face mask

Explanation:

When using a grinder, safety glasses protect eyes from flying debris, and ear protection safeguards against the loud noise generated by the grinder. Gloves are useful but not as crucial as the above two in preventing major injuries. A hard - hat, rubber footwear, and face mask are less essential for grinder - related risks.

Answer:

ear protection, safety glasses