The ornamental design for inner drive portion of a circular sawblade, as shown and described.
FIG. 1 is a right side elevational view of a inner drive portion of a
circular saw blade showing our new design the opposite side being a mirror
image thereof;
FIG. 2 is a top plan view the bottom plan view being a mirror image; and
FIG. 3 is an enlarged cross sectional view taken along line 3--3 of FIG. 1.
The broken line showing of FIGS. 1 and 2 is for illustrative purposes only
and forms no part of the claimed design.