TO prevent slackening of nuts due to vibration
To prevent damage to the work
To prevent damage to the bolt
To prevent damage to the thread
Fine adjusting screw
Guide pins
V groove
Rocker arm
Increase in hardness
Increase in malleability
Increase in ductility
None of the above
spinning
drawing
coining
swaging
Weight
Centre distance between the two rollers
Total Length
Size of the rollers
