Stahlwille 12615 Nut splitters, size 1; for Nuts mm 10-18
Zinc plated, mechanical, for splitting seized or overtightened nuts up to class 8. Does not damage the threaded pin. As the spindle is tightened, the nutsplitter body has to be locked with an open-jaw spanner to prevent it turning. Cutting chisel made of high-grade alloy tool steel.