Question

make sure the shank or arbor size of bits and other attachment fit the collet of the die grinder you are using.
safe
unsafe
question 13 0.5 pts
only partially insert the shank of a bit or attachment into the collet, to allow for greater reach with the tool.
safe
unsafe

Explanation:

First Question (about fitting shank/arbor size to collet)

Ensuring the shank or arbor size of bits/attachments fits the die grinder's collet is a safe practice to prevent tool malfunction or accidents.

Partially inserting the shank into the collet is unsafe because it can lead to the bit/attachment slipping, wobbling, or flying out during use, causing injury or damage.

Answer:

Safe

Question 13 (about partially inserting shank)