PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Two main types fulfill this criteria and are shown below and are a straight forward type whereby the cutting end filed at a half diameter is relieved in both planes (assuming anti-clockwise direction of the piece being bored) and the parrot nosed style where the end of the bit is domed before filing or milling to a half section and relieved as shown with a semicircular section.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bagpipeworld.co.uk