Double Open End Spanner
A double open-end spanner, also known as a double-ended open wrench or spanner, is a hand tool designed for tightening or loosening nuts and bolts. It features two open-ended jaws of different sizes at opposite ends of the tool, allowing the user to work with two different-sized fasteners without the need to flip the tool. The open ends are typically U-shaped and parallel, providing a snug fit on the fastener's flats. This design makes double open-end spanners useful in various applications where access is not restricted and where a quick switch between two different sizes of nuts or bolts is required.
Double Ring Spanners Set
A set of 8 double ring spanners typically refers to a collection of eight wrenches, each featuring two ring-shaped ends of different sizes. These spanners are designed for tightening or loosening nuts and bolts of various dimensions. The term "double ring" indicates that both ends of each spanner have a circular or ring-shaped opening. Such a set is versatile and allows users to work with a range of fastener sizes, making it a valuable tool for mechanics, technicians, and DIY enthusiasts. The spanners may come in a storage case or pouch for organized and convenient use.