83 / | HD | CUTTING |
178 | DF | BY TOOL INSIDE HOLLOW WORK {9} |
188 | DF | .~ One tool having only rectilinear motion(s) {3} |
192 | DF | .~.~ Multiple external active tools {1} |
193 | DF | .~.~.~ Tools operate in a substantially common transverse plane of cut {1} |
194 | .~.~.~.~ With tool actuating cams on a common support |