The Saturday Morning Plumber’s Quiz: Can You Name These 20 Hardcore Plumbing Tools?
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Which heavy-duty, adjustable iron tool with serrated steel teeth is designed to grip and turn round metal utility pipes?
Explanation
The heavy-duty pipe wrench (often called a Stillson wrench) features pivoting jaws with sharp teeth that bite deeper into round metal pipes as you apply more pressure. Its heavy cast-iron design makes it a garage classic.