It will be noted that light shading lines are provided at locations where a surface transition to a different contour or the like takes place, e.g., from curved in cross section to flat or to a different curvature, as typical of CAD drawings.
As alternative, but unclaimed, embodiments of the design, there also are:
a hand held metal detector with the buttons inside of the containing area disclaimed;
a hand held metal detector with the bottom surface disclaimed;
a hand held metal detector with the fastening members shown as small solid circles surrounded by a circle (see especially
a hand held metal detector with the speaker holes above the buttons disclaimed; or
any combination of two or more of the above features disclaimed.