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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	As a rule of thumb, aluminum and other soft materials usually work well with higher speeds, but as the drill bits get larger you may need to slow the drills rpms.
http://www.w3.org/ns/prov#wasQuotedFrom	eaaforums.org