
https://www.questionsolutions.com/wp-content/uploads/2017/08/wrench1.png
https://www.questionsolutions.com/wp-content/uploads/2017/08/wrench2.png
https://www.questionsolutions.com/wp-content/uploads/2017/08/wrench11.png
https://www.questionsolutions.com/wp-content/uploads/2017/08/wrench22.png
Diagram is not to scale