A combination spanner, also known as a combination wrench, is a versatile hand tool used for tightening or loosening nuts and bolts. It features a double-ended design with an open-ended jaw on one side and a closed, ring-shaped jaw on the other. The open end of the spanner has a U-shaped opening that fits onto the fastener, while the closed end has a circular opening with teeth or grooves that provide a secure grip on the fastener's sides.
Combination spanners are available in various sizes, typically measured in metric or imperial units, to accommodate different nut and bolt sizes. The spanner's design allows for flexibility and convenience as it provides two options for engaging with fasteners, depending on the accessibility and space available.
The open end of the spanner is often used for quick turning or when space is limited, while the closed end with its ring shape provides better torque and leverage for stubborn or high-torque applications.
Combination spanners are commonly used in automotive repair, machinery maintenance, plumbing, and general mechanical work. Their reliable design and ability to work with a range of fastener sizes make them a valuable tool for any toolkit or workshop.
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