About: http://webisa.webdatacommons.org/256637578

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	All of the components of conventional drill bits, including hardened steel, tungsten carbide, diamond, elastomers, and other materials can be removed at a fast rate by impacting the bits with particles at high velocity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es