In metallographic specimen preparation, diamond cut-off wheels and CBN cut-off wheels are common and widely used cut-off wheels. Diamond cut-off wheels possess extremely high hardness, durability, and low deformation. Diamond cut-off wheels discs can be categorized into types such as metal-bonded, electroplated, and resin-bonded.

The hardness of CBN cut-off wheels is lower than that of diamond cut-off wheels, but they are comparable in terms of durability. Similar to diamond cut-off wheels, CBN cut-off wheels are also available in metal-bonded, electroplated, and resin-bonded types.