A diamond cutting element for use on an earth boring drill bit, such as a rotary drag bit. The cutting element is predominately comprised of a diamond cutting structure attached to either a reduced-volume substrate or directly to a bit body, optionally using a carrier structure mounted to the bit body....http://www.google.es/patents/US5924501?utm_source=gb-gplus-sharePatente US5924501 - Predominantly diamond cutting structures for earth boring
Predominantly diamond cutting structures for earth boring
