Step drill

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Description

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

FIG. 2 is a front view thereof;

FIG. 3 is a rear 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.

Claims

The ornamental design for a step drill as shown and described.

Referenced Cited
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5466100 November 14, 1995 Ahluwalia
D526670 August 15, 2006 Ibey
D872783 January 14, 2020 Parendo
D881241 April 14, 2020 Parendo
D892183 August 4, 2020 Parendo
D936117 November 16, 2021 Allen
D1033191 July 2, 2024 Bailey
D1050206 November 5, 2024 Li
20120195704 August 2, 2012 White
20140363244 December 11, 2014 Allen
20190329331 October 31, 2019 Parendo
20210197295 July 1, 2021 Ward
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20240051040 February 15, 2024 Bailey
20240066610 February 29, 2024 Wang
Foreign Patent Documents
2394197 April 2004 GB
2419555 May 2006 GB
WO-2012167448 December 2012 WO
Other references
  • https://www.steelvisiontools.com/products/5pc-cobalt-stepped-drill-bit-set/ (Year: 2022).
Patent History
Patent number: D1069871
Type: Grant
Filed: Sep 1, 2023
Date of Patent: Apr 8, 2025
Assignee: SHAJENG HARDWARE CO., LTD. (Taichung)
Inventor: Jen-Tsung Liao (Taichung)
Primary Examiner: Patricia A Palasik
Application Number: 29/911,386
Classifications