what type of rotary bits can cause a grinder to catch on rough material edges or shift around?\nbacking\nkerf…

what type of rotary bits can cause a grinder to catch on rough material edges or shift around?\nbacking\nkerf\nburr\nabrasive
Answer
Brief Explanations:
Burrs on rotary bits can get caught on rough material edges or cause the grinder to shift as they are irregular protrusions. Backing is a support - related component, kerf is a cut - related term, and abrasive is a general type of material for grinding.
Answer:
C. burr