Also referred to as a crescent wrench or adjustable spanner, this adjustable wrench features auto-locking jaws that help prevent loosening or slipping. This very popular tool has a 1.4" jaw capacity that fits many different shapes and sizes. It is made from 304 series stainless steel with a mirror polished surface that provides excellent corrosion resistance. It also has a handle hole for tethering, hanging or storage. The 12" Adjustable Wrench can be autoclaved up to 250 degrees Fahrenheit.