Claims (1)
The ornamental design for a core drill bit as shown and described.
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FIG. 1 is a perspective view of a first implementation of a core drill bit. FIG. 2 is a left view of the core drill bit of FIG. 1 . FIG. 3 is a right view the core drill bit of FIG. 1 . FIG. 4 is a front view the core drill bit of FIG. 1 . FIG. 5 is a rear view the core drill bit of FIG. 1 . FIG. 6 is a top view the core drill bit of FIG. 1 . FIG. 7 is a bottom view the core drill bit of FIG. 1 . FIG. 8 is a perspective view of a second implementation of a core drill bit. FIG. 9 is a left view of the core drill bit of FIG. 8 . FIG. 10 is a right view the core drill bit of FIG. 8 . FIG. 11 is a front view the core drill bit of FIG. 8 . FIG. 12 is a rear view the core drill bit of FIG. 8 . FIG. 13 is a top view the core drill bit of FIG. 8 ; and, FIG. 14 is a bottom view the core drill bit of FIG. 8 . The portions shown in broken lines form no part of the claimed invention.
Citations
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