Use must not defeat the purpose of the device. or tools That machine, for example, is often found to be used. Cranes are used to pull or drag heavy objects or use elevators to deliver materials for workers to get on and off.

- Use must not defeat the purpose of the device. or tools That machine, for example, is often found to be used. Cranes are used to pull or drag heavy objects or use elevators to deliver materials for workers to get on and off. This is something that should not be done. In practice, the proper use of equipment and machinery and correct according to the type of work will be effective and not experience danger from using that equipment, tools, or machinery

- Tools and machines that use electricity or fuel Tool precautions Machinery that uses electricity must be safely wired. There is insulation throughout. And if you must work near an area with high voltage within a radius of 3 meters, you must notify the electricity authority every time. To manage and prevent dangers which may occur or areas where fuel is stored, it is strictly prohibited to light fires or smoke.

- Tools and machines must have cards. Security system Do not remove or disable this safety system if the machine tool does not have it. Cards should be provided. and appropriate safety systems immediately.

- Before and after every use of tools and machines, they must be inspected and repaired before or after every use.