To convert the weight of the tool from ounces to grams, we can use the conversion factor that 1 ounce is equal to 28.35 grams.
Given that the tool weighs 5 ounces, we can calculate its weight in grams as follows:
\[ \text{Weight in grams} = 5 \text{ ounces} \times 28.35 \text{ grams/ounce} \]
Now, performing the multiplication:
\[ \text{Weight in grams} = 5 \times 28.35 = 141.75 \text{ grams} \]
Therefore, the tool weighs 141.75 grams.