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Synths can choose different working modules for the jobs they take. A padded grip can handle material that hard fingers would damage, while another fitting can support a particular service task. The shared civilian frame keeps compatible parts useful across occupations. A fitting specialist checks the module and the load it must handle before the synth relies on it at work.

Tool choice depends on contact, weight and the task. A module that works well on a rigid component may be wrong for clothing or delicate goods. Supported test pieces and bench cradles allow the fit to be checked without asking the synth to improvise around an unsupported load.

Changing a module doesn't change the individual's identity or restore its old network connection. It creates another work option. The synth may pay for that capability itself or agree to equipment provision as part of a contract. Maintenance and replacement parts remain costs to consider when deciding whether a new kind of work is worth taking.