Questions: Many copper tubing cutters have to remove the internal ridge caused by cutting the copper tubing.
two cutting wheels
a folding triangular reamer
both a and c
a folding file feature
Transcript text: Many copper tubing cutters have $\qquad$ to remove the internal ridge caused by cutting the copper tubing.
two cutting wheels
a folding triangular reamer
both a and c
a folding file feature
Solution
The answer is the second one (B): a folding triangular reamer.
Explanation for each option:
Two cutting wheels: This option is incorrect because the cutting wheels are used to cut the tubing, not to remove the internal ridge.
A folding triangular reamer: This option is correct because a folding triangular reamer is specifically designed to remove the internal ridge caused by cutting the copper tubing.
Both A and C: This option is incorrect because neither A nor C is correct.
A folding file feature: This option is incorrect because a folding file feature is not typically used for removing the internal ridge in copper tubing.
Summary:
Many copper tubing cutters have a folding triangular reamer to remove the internal ridge caused by cutting the copper tubing.