An ornamentaldesign for a door blade with carbide insert, as shown and described.
FIG. 1 is a perspective view of a door blade with carbide insert showing my new design positioned for attaching to a rear of a door on an asphalt rotomill housing.
FIG. 2 is a front view of the door blade with carbide insert.
FIG. 3 is a rear view of the door blade with carbide insert.
FIG. 4 is an end view of the door blade with carbide insert.
FIG. 5 is an opposite end view of the door blade with carbide insert.
FIG. 6 is a top view of the door blade with carbide insert; and,
FIG. 7 is a bottom view of the door blade with carbide insert.
The broken line showing of the rotomill and housing are shown for environmental purposes only and form no part of the claimed design.