PDC insert featuring side spiral wear pads

摘要: The present disclosure sets forth various forms of inserts for operating as elements in bearing drill bits and similar devices. A single insert is formed with an external side face cylindrical construction. One or more strips hardened materials such diamond other hard material are provided along the face. At end face, incorporates exposed tungsten carbide, material. PDC layer optionally placed over has form a covering terminating at radius curvature.