Also looked up a lot of knowledge about wrenches. Suddenly, a spark of invention flashed through my mind: how wonderful it would be to make a multi-purpose wrench and rotate various wrenches on the movable handle and armrest, which can be used both vertically and rotatably!
The method of making this half head is very simple. Find four wrenches you need and fix them on the movable handle and armrest with iron rings. The four wrenches can rotate freely and the handles can be placed vertically. This is fast, time-saving, and can be placed horizontally, and the torque is large when used. How convenient!
The use of this work is also very simple: when the screw is placed vertically, the force is not great. You can turn the movable handle to make it vertically, hold the handrail with one hand, and rotate it quickly with the other hand, and then the force is extremely small, so that the screw can be rotated quickly in an instant; Under the condition of horizontal placement and constant force, the force concentration changes-it becomes longer, which can increase the torque tool for clamping or forcibly loosening the screw after clamping; There are four specifications to choose from, no need to change, just rotate to the required specifications. The four specifications are connected into a whole, which is not easy to lose.
After this wrench comes out, it only needs to easily solve the hard trouble of screwing up and down. I hope you can think more in your life and have a pair of innovative eyes. I believe you can also create some ideas that are helpful to future people.