| 279 / | HD | CHUCKS OR SOCKETS |
| 9.1 | DF | SOCKET TYPE {27} |
| * | | .~ Resilient split socket {5} |
| 42 | DF | .~.~> Threaded cam sleeve |
| 43 | DF | .~.~> Reciprocating cam sleeve |
| 43.1 | DF | .~.~> Unitary {3} |
| 43.7 | DF | .~.~> Nonresilient member biased by a resilient member |
| 43.8 | DF | .~.~> Resilient member reinforced by another resilient member |