To check right angle
To check acute angle
To check obtuse angle
To check straight angle
.
White wash
Prussian blue
Copper sulphate
Cellulose lacquer
Snug
Guide pin
Rocker arm
Fine adjustment screw
stretching of blade
wrong pitch of the blade
improper selection of saw sets
nut thread being worn out
Hand force is too big
Cutting section is too short
Coarse blade to be used
Hand force acts only upon few teeth
