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Posted by mannyc [68.165.89.2] on Friday, September 17, 2010 at 16:45:46 :
In Reply to: Re: Sorry OT, but I have to ask posted by Bill Kerfoot [66.74.149.93] on Friday, September 17, 2010 at 16:11:22 :
like building an automatic transmission or carb, its voodoo science. I believe they use gps to drill, but how that translates to the drill bore is above my pay grade. thankfully the guys are losing weight so they will fit through the hole. it wont be a fun ride up the inside of the tube.