Sure, Wbemtest.exe is pretty neat, and it gets points for being built-in. http://blogs.technet.com/b/chad/archive/2012/03/08/tip-45-wbemtest-the-underappreciated-tool.aspx

Microsoft’s Wbemtest.exe displaying a WMI query

But when it comes to building WMI queries for use in scripting languages, Microsoft’s WMI Code Creator is even slicker. https://technet.microsoft.com/en-us/magazine/2006.01.utilityspotlight.aspx

The WMI Code Creator tool allows you to generate VBScript, C#, and VB .NET code that uses WMI to complete a management task such as querying for management data, executing a method from a WMI class, or receiving event notifications using WMI.
https://technet.microsoft.com/en-us/scriptcenter/dd823314.aspx

Microsoft’s WMI Code Creator displaying a WMI query and VBScript (click for full-size)

The tool also allows you to browse through the available WMI namespaces and classes on the local computer to find their descriptions, properties, methods, and qualifiers.
https://www.microsoft.com/en-us/download/details.aspx?id=8572

The WMI Code Creator utility can be downloaded from microsoft.com at WMI Code Creator v1.0.