Star manufactures special Polycrystalline Diamond (PCD) drills and reamers. Multiple and single diameter design.  Coolant through and non-coolant through available.

V-tec™ veined rotary cutting tools are PCD-coated using a special, ultra-high pressure and high-temperature process that allows  end mills and drills to be offered in true solid-body helical geometries that are free of braze joints, making it possible to machine highly abrasive, advanced materials where conventional end mills fail.