Measurement tool with keyed fingers

A measurement method, comprising:

• providing a holder defining a plurality of uniquely keyed slots, wherein each of the plurality of keyed slots has a different keying configuration;
• and
• coupling a plurality of measurement fingers each comprising a uniquely keyed base adapted to be disposed in a corresponding one of the plurality of keyed slots to the holder.

A non-transitory computer-readable medium comprising instructions stored in a memory and executed by a processor to carry out the measurement steps comprising:

• given a holder defining a plurality of uniquely keyed slots, wherein each of the plurality of keyed slots has a different keying configuration, and a plurality of measurement fingers each comprising a uniquely keyed base adapted to be disposed in a corresponding one of the plurality of keyed slots, confirming engagement of each of the plurality of measurement fingers in the corresponding keyed slot using a controller.