| 83 / | HD | CUTTING |
| 284 | DF | CUTTING MOTION OF TOOL HAS COMPONENT IN DIRECTION OF MOVING WORK {17} |
| 285 | DF | .~ With means to initiate intermittent tool action {2} |
| 296 | ![]() | .~.~ With means to vary frequency of initiation {1} |
| 297 | DF | .~.~.~> By orbitally traveling trigger pin(s) |