Here is a thread with more info
http://www.cs-bb.com/forums/CSBB/ind...ames/read/8609 and a link to
a company that has a $40 winch bit to fit a 1/2" drill. They suggest a 18 v
drill with 450 in./lbs torque

ebay link:
http://cgi.ebay.com/ws/eBayISAPI.dll...sPageName=WDVW