The EXP gives the high performance you need. Easily dressed to restore cutting action. Notched blades have been the standard lapidary blade for years. Diamonds are captured in notches in the blade rim and are furnace brazed in place. A very forgiving blade which can stand a lot of abuse.
Notches help distribute the coolant in the cut.
May be dressed to restore cutting action. Easily repaired if dished or bent. Available in thicknesses from .012 to .070. Styles for both oil and water coolant. These blades have a thin layer of diamond bonded to a thin core.