Claims (1)
Claim 1 (Independent)
The ornamental design for a step drill bit, as shown and described.
Full Description
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FIG. 1 is a perspective view of the step drill bit.
FIG. 2 is a left side view of the step drill bit of FIG. 1 .
FIG. 3 is a right side view of the step drill bit of FIG. 1 .
FIG. 4 is a front view of the step drill bit of FIG. 1 .
FIG. 5 is a rear view of the step drill bit of FIG. 1 .
FIG. 6 is a top end view of the step drill bit of FIG. 1 ; and,
FIG. 7 is a bottom end view of the step drill bit of FIG. 1 .
Citations
This patent cites (18)
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