Drilling tool

The ornamental design for a drilling tool, as shown and described.

FIG. 1 is a first elevation view of a drilling tool in accordance with the design.

FIG. 2 is a second elevation of the drilling tool of FIG. 1, viewed from a different angle.

FIG. 3 is a top plan view of the drilling tool; and,

FIG. 4 is a bottom plan view of the drilling tool.

It is to be understood that broken lines in the drawings are intended for illustrative purposes only, and do not form part of the claimed design.

Patent	Priority	Assignee	Title
10316595,	Nov 13 2014	Z DRILLING HOLDINGS, INC	Method and apparatus for reaming and/or stabilizing boreholes in drilling operations
D574957,	Jan 07 2008	MINSURG INTERNATIONAL, INC	Bone plug
D686896,	Apr 25 2012	VIANT AS&O HOLDINGS, LLC	Reamer with a cutting surface at the ends of the cross-bar
D750674,	Aug 01 2014		Milling tool
D755265,	Aug 20 2013	HUNTING ENERGY SERVICES INTERNATIONAL LIMITED	Drilling tool
D759135,	Aug 20 2013	HUNTING ENERGY SERVICES INTERNATIONAL LIMITED	Drilling tool
D786645,	Nov 03 2015	Z DRILLING HOLDINGS, INC.; Z DRILLING HOLDINGS, INC	Reamer
D799574,	Mar 30 2015		Milling tool
D877780,	Sep 08 2017	XR Lateral, LLC	Directional drilling assembly
D882792,	Jan 31 2018	Beijing SMTP Technology Co., Ltd.	Ultrasonic cutter head with slotting umbrella
D889231,	Sep 08 2017	XR Lateral, LLC	Directional drilling assembly
D954754,	Feb 28 2020	COBALT EXTREME PTY LTD	Rod coupler

Patent	Priority	Assignee	Title
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5474143,	May 25 1994	Smith International Canada, Ltd.	Drill bit reamer stabilizer
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D496948,	Jun 12 2003		Square drill bit

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