indexing head
noun
a circular plate mounted to rotate on its centre, inscribed with concentric circles, each accurately divided, the dimensions being marked by drilled holes. The plate can be moved round with a workpiece to facilitate the accurate location of holes or other machining operations on the workpiece
Words nearby indexing head
index set,
index-link,
index-linked,
indexation,
indexical,
indexing head,
indexing service,
india,
india chintz,
india drugget,
india ink