Q18. A drill bit that struggles to bore a hole may be: Dull from overuse Not spinning in a clockwise direction Spinning too fast or too slow depending on the material All of these

## Step 1<br />This problem is about the potential issues that can occur when using a drill bit. The options provided are:<br />- Dull from overuse<br />- Not spinning in a clockwise direction<br />- Spinning too fast or too slow depending on the material<br />- All of these<br /><br />## Step 2<br />Each of the first three options can cause a drill bit to struggle to bore a hole. A dull drill bit can struggle because it doesn't cut as efficiently. If the drill bit is not spinning in a clockwise direction, it can't bore a hole properly. If the drill bit is spinning too fast or too slow, it can also struggle to bore a hole.<br /><br />## Step 3<br />The last option, "All of these", includes all the potential issues mentioned in the first three options. Therefore, it is the correct answer.