(under subclass 165) Subject matter wherein the blank or stock material is supplied to an apparatus for forming an internally threaded fastener.
SEE OR SEARCH CLASS
408, Cutting by Use of Rotating Axially Moving Tool,
8+, for drilling machines with feed mechanism having means which in response to predetermined conditions during relative approach movement of tool and work, brings into operation a control means which reverses the direction of relative movement to withdraw tool and work; subclasses 62+ for drilling machines which feed the tool along the tool-axis; and subclasses 124+ for drilling machines which feed the tool along the tool-axis.
