five safety precautions associated with use of hacksaws.
Ans.
five safety precautions associated with use of hacksaws.
(I) Use correct type and size of blade for the job
(i) Screw the blade firmly on the frame
(iii) Fix the job tightly in a vice before hacksawing
(iv) Don't exert too much pressure
(v) Use correct cutting speed. The blade may break if the speed is too fast.