Wire Knife with Thicker Wire

Here is what Bill has to say:
"Designed to comfortably fit the hand, this lightweight and hard-surfaced aluminum "knife" will become one of your most-used studio tools - for hand building and at the wheel. Unlike a flat knife blade, the tensioned wire cuts through clay without drag or distortion.  Use this thicker wire to edge-trim unwanted clay from loaded molds & cutting stiff clay. And, it's a safe tool to use in the classroom.