Button drill bit

Description

FIG. 1 is a perspective view of a button drill bit showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the figures illustrate the portions of the button drill bit that form no part of the claimed design.

Claims

The ornamental design for a button drill bit, as shown and described.