Check out this web page.  This person has some quick useful information.

http://www.aracnet.com/~gpatrick/

Jeff Cole
Battelle PNNL
Scientific/Engineering Associate
w-(509) 375-2758
fax (509) 372-4725
[log in to unmask]


        -----Original Message-----
        From:   Derek Wynne [SMTP:[log in to unmask]]
        Sent:   Thursday, August 20, 1998 7:39 AM
        To:     [log in to unmask]
        Subject:        [DC] FW: PTH Drill Holes ?




        Hi Folks, 

        I am wading my way through my first "Major" PCB design and I have a
couple of simple questions/requests  for you. 

        1/      Does anybody have a conversion table AWG to MILS to INCHES to
METRIC ? 
                Or at least AWG to Metric. 

        2/      And has anyone got a table of PCB drill hole sizes for different
PTH pin sizes. 

        3/      Also does drill oversize vary from one PCB manufacturer to
another or is the 0.006MIL 
                that my vendor uses pretty much standard. 

        I would appreciate any help that you could give. 

        Regards 

        Derek Wynne 


        Derek J. Wynne 
        Design Engineer. 
        Toucan Technology Ltd. 
        I.D.A. Business Park 
        Dangan 
        Galway City 
        Ireland. 
          
        Telephone: +35391519913 
        Fax:          +35391519901 
        E-mail:       [log in to unmask] < <mailto:[log in to unmask]>> 
          
          

################################################################
DesignerCouncil E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE DesignerCouncil <your full name>
To unsubscribe:   SIGNOFF DesignerCouncil
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################