409 / | HD | GEAR CUTTING, MILLING, OR PLANING |
243 | DF | BROACHING {20} |
269 | DF | .~ With means to advance, infeed, or manipulate work {2} |
270 | DF | .~.~ Interrelated with cutter infeed {4} |
274 | .~.~.~ With means to retract work from path of tool's idle return stroke |