| http://www.w3.org/ns/prov#value | - eing substantially coincident with the tool axis of the individual tool received on each tool carrier, and each carrier including three bearings disposed about said tang in a plane perpendicular to said tang axis; a rack having a plurality of seats, each seat adapted to support thereon an individual one of said measuring tools; a plurality of bearing surfaces on said arm adapted for abutment by an
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