The ornamental design for a millingmachinespindlespeeder, as shown and described.
FIG. 1 is a front top perspective view of the milling machine spindle speeder;
FIG. 2 is a back top perspective view of the milling machine spindle speeder;
FIG. 3 is a back bottom perspective view of the milling machine spindle speeder;
FIG. 4 is a front bottom perspective view of the milling machine spindle speeder;
FIG. 5 is a front elevation view of the milling machine spindle speeder;
FIG. 6 is a right side elevation view of the milling machine spindle speeder;
FIG. 7 is a rear elevation view of the milling machine spindle speeder; and,
FIG. 8 is a left side elevation view of the milling machine spindle speeder.
The broken lines in FIGS. 1–8 are included for the purpose of illustrating the environment of the milling machine spindle speeder and form no part of the claimed design.