- Knipex Pipe Wrench S-Type 320 mm - <p>Fixing adjustment nut<br> Jaws specially hardened with teeth, hardness approx. 56 HRC<br> I-beam handle design<br> Jaws with offset teeth in opposite directions<br> Covered in red powder coating, with bright jaws<br> Fine, S-type jaws<br> Teeth additionally induction hardened<br> Three-point contact on pipes, self-locking</p> <p><strong>Durable tool for factory and industrial systems</strong></p> <p><strong>Endlessly adjustable and self-locking function