The ornamental design for a microtrenchingblade and tooth, as shown and described herein.
FIG. 1 is a side view of a microtrenching blade showing our new design;
FIG. 2 is a perspective view thereof;
FIG. 3 is a close-up top view thereof;
FIG. 4 is a close-up side view thereof;
FIG. 5A is a back left perspective view of a cutting tooth used with the microtrenching blade of FIG. 1;
FIG. 5B is a front right perspective view of the cutting tooth shown in FIG. 5A;
FIG. 5C is a left side view of the cutting tooth shown in FIG. 5A;
FIG. 5D is a back view of the cutting tooth shown in FIG. 5A; and,
FIG. 5E is a front view of the cutting tooth shown in FIG. 5A.
The pattern repeats uniformly throughout the circumference of the blade. The broken line in the figure drawings represents unclaimed environment only and forms no part of the claimed design.