83 / | HD | CUTTING |
469 | DF | ROTATABLE DISC TOOL PAIR OR TOOL AND CARRIER {11} |
471 | DF | .~ With means to support work relative to tool(s) {6} |
471.2 | DF | .~.~ Tool moved relative to work-support during cutting {1} |
471.3 | .~.~.~ Tool angularly adjustable relative to work-support |