Prevent the tool from getting jammed
Increase the strength of the tool
Increase the production
To control the chip flow
Due to its ductility
Due to its brittleness
Due to its red hardness
Due to its cold hardness
Weaken the tool
Get more tool life
Strengthen the tool
Helps easy chip flow
Hard material on to hard of wheel
Hard material on soft wheel
Soft material on hard of wheel
Soft material on soft wheel