What does "twelve" spanner mean?
The 12 inch wrench has a 30x300 on it, which means the wrench's maximum opening is 30mm and the wrench's length is 300mm (12 inches)
The wrench is usually provided with a clamping handle at one end or both ends of the handle part, and when an external force is applied to the handle, the bolt or nut can be screwed, and the opening or the hole of the bolt or nut can be screwed.
Wrench: wrench is a common tool for mounting and dismounting. A manually operated tool for screwing bolts, screws, nuts, and other threads to secure the opening or sleeve of a bolt or nut.
