कार्यशाला में सुरक्षा प्रथाओं को प्रत्येक कारीगर द्वारा किस रूप में माना जाना चाहिए?

Which hand tool is most suitable for tightening or loosening nuts of different sizes without changing tools?

During cutting operation with a hacksaw, the blade teeth should face:

Which hammer is commonly used in fitting and sheet metal work associated with electronic chassis fabrication?