Lubricating the cutting edge will reduce the heat that is generated by cutting friction – too much heat in the cut is one of the main reasons for blade failure.
A flood of coolant helps wash the chips from the gullets
• Chips become work-hardened in the cutting operation
• If chips are dragged back through the cut a second time, they can damage teeth
A flood of coolant helps cool the blade’s cutting edge and saw guides, extending blade life.
Remember: flood coolant whenever possible and only use coolant where chips are present – do not use coolant on materials that produce a powder, such as gray iron.