(under subclass 469) Device wherein means are provided to effect a change in the position of the tool relative to its tool holder, or means to effect a change in the position of the tool carrier.
SEE OR SEARCH THIS CLASS, SUBCLASS:
482, for means to separate the elements of a disc tool pair.
498+, for a rotatable tool pair which is axially shiftable.
507, for elements of a tool pair which are adjustably spaced.