The ornamental design for a rotary cuttingdisccenterblade device, as shown and described.
FIG. 1 is a top view of a rotary cutting disc center blade device showing my new design;
FIG. 2 is a bottom view of the rotary cutting disc center blade device;
FIG. 3 is a side view of the rotary cutting disc center blade device;
FIG. 4 is a side view of the rotary cutting disc center blade device;
FIG. 5 is an inverted back view of the rotary cutting disc center blade device;
FIG. 6 is a front view of the rotary cutting disc center blade device; and,
FIG. 7 is a top front side perspective view of the rotary cutting disc center blade device.
The broken line showing of the bolts in FIGS. 1 and 7 is included for the purpose of illustrating environmental structure only and forms no part of the claimed design.