Working that weight of nylon requires a sail makers/rigger's machine. Your average seamstress wouldn't have it in her shop. <br><br>It uses a stronger thrust, so there is less cutting of the threads, or so I've been told. I do know that you need a thicker needle if it's to be done on machine, and those aren't something you can find in Wallyworld.<br><br>While you can do it by hand, or on a regular machine, I <br>wouldn't trust the sheath.