Standardization
Tools that are the same size with the same attachment location can be changed much more quickly. Consider how long it would take a pot crew to change tires if the replacement tire had a different lug nut configuration. In the same vein, a common die height allows the shut height of the press to be set to a common dimension.
Standardized attachment points and methods reduce confusion and the number of fasteners - saving time. Standardization also applies to tool storage organization so that tools can be quickly located. See the 5S tutorial of the Toolbox for additional discussion of workstation organization.