(under subclass 72) Device in which the work-contacting structure penetrates the work surface at a point which has not been previously modified.
(1) Note. The work-penetrating structure of this subclass is not to be confused with the device of Class 83, Cutting, or the device of Class 72, Metal Deforming. To be placed herein, the penetrating means must solely facilitate the securing or aligning of a cutting instrumentality relative to work and the depression formed must be unused at any other time for any other purpose.
SEE OR SEARCH THIS CLASS, SUBCLASS:
195, for means to "form" a recession in the work that is not separate from the tool or the tool-support, wherein the tool is positionable relative to the tool-support.
208, for a tool of this class including a lead screw adapted to "form" a recession in the work, a product-receiving chamber, and a cutting edge.
214, for a tool of this class including a material penetrating lead screw and a cutting edge.
