XPATH WITH DOM

I am new to this forum as well as a beginner with XPATH and XML...here it goes: I am trying to extract the value "CARBIDE" from the node MfgParam name = "Tool_Material" from the below XML document. The problem is I don't know what type of node this is:  

<MfgParam Name="TOOL_MATERIAL" Value="CARBIDE"/>

I tried some XPATH expressions and it seemed like it is not an element node or an attribute node...what is it? Here is the document:

<?xml version="1.0" encoding="UTF-8"?>

<MfgSetupDocument>

    <DocType>PRO_NC_CUTTING_TOOL_SETUP</DocType>

<DocTitle>Cutting Tool Information</DocTitle>

    <DateTime>2013-05-09T09:17:44</DateTime>

    <ApplicationInfo AppName="Pro/ENGINEER" Language="usascii" AppVersion="M130"/>

    <ToolingSetup>

        <Tool Id="EM12345" Type="MILLING" RefXmlId="encref_1">

            <Attr Name="UseOutline" Value="false" DataType="boolean"/>

            <Attr Name="ProLibraryTool" Value="false" DataType="boolean"/>

            <Attr Name="SketchTool" Value="false" DataType="boolean"/>

            <Attr Name="ToolByRef" Value="false" DataType="boolean"/>

            <MfgParam Name="LENGTH_UNITS" Value="INCH"/>

            <MfgParam Name="CUTTER_DIAM" Value="0.5"/>

            <MfgParam Name="CORNER_RADIUS" Value="-"/>

            <MfgParam Name="SIDE_ANGLE" Value="-"/>

            <MfgParam Name="LENGTH" Value="1.5"/>

            <MfgParam Name="NUM_OF_TEETH" Value="5"/>

            <MfgParam Name="TOOL_MATERIAL" Value="CARBIDE"/>

            <MfgParam Name="GAUGE_X_LENGTH" Value="-"/>

            <MfgParam Name="GAUGE_Z_LENGTH" Value="5.6842"/>

            <MfgParam Name="COMP_OVERSIZE" Value="-"/>

            <MfgParam Name="TOOL_LONG_FLAG" Value="NO"/>

            <MfgParam Name="HOLDER_DIA" Value="2.94"/>

            <MfgParam Name="HOLDER_LEN" Value="1"/>

            <MfgParam Name="COOLANT_OPTION" Value="OFF"/>

            <MfgParam Name="COOLANT_PRESSURE" Value="NONE"/>

            <MfgParam Name="SPINDLE_SENSE" Value="CW"/>

            <MfgParam Name="FLUTE_LENGTH" Value="1.25"/>

            <MfgParam Name="TOOL_COMMENT" Value=".500 DIA 5-FLT HANITA EM "/>

            <ToolSetUpOnWorkcell>

                <OffsetDataCollection>

                    <OffsetData Tip="1" Comment=".500 DIA 5-FLT HANITA EM " OffsetZ="0.000000" Register="-1"/>

                </OffsetDataCollection>

            </ToolSetUpOnWorkcell>

        </Tool>

    </ToolingSetup>

</MfgSetupDocument>

Am programming with VB.Net 2010/Visual Studio. I tried experimenting with the code below using the DOM but it would only show the element nodes:

Dim AllNodes As XmlNodeList
        AllNodes = MillingToolTemplate.SelectNodes("/MfgSetupDocument/descendant::*")

        Dim i As Integer
        For i = 0 To AllNodes.Count - 1
            Console.WriteLine(i & ". " & AllNodes(i).InnerText)
        Next

Sorry about the fonts.

what is the XPATH expression to get the value "CARBIDE" from the MfgParam Name = "TOOL_MATERIAL"

Any help is greatly appreciated.