Spider Oil Pan Drain Plug

[Kevin.FILLIP@xxxxxx]

     Can anyone tell me what size hex key you use on the oil drain plug of 
     a '91 Spider ? I thought that I had the standard 23mm bolt that you 
     could use a socket on but it turns out to be a recessed hex head bolt. 
     Also, any ideas on who'd sell the tool ? The biggest one Sears had was 
     17mm. Thxs.
     
     Kevin Fillip
     Dallas, Texas
     
     '91 Spider
     '91 164
     '88 Milano 

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