Text Box: The example at left shows a typically worn 3/8" PDC Cutter mounted on the steel post and also an example where the PDC cutter was fractured and then worn all the way down to the small piece remaining without gross loss downhole. Text Box: The PDC Cutter component for the SP mills has been designed so that it presents an abrasion resistant  PDC cutter to the target for maximum wear resistance, but in the event of a down hole misstep the cutter is easily dissipated in the event the cutting structure is destructed from impact loading (collapsed casing, junk, etc.)