Posted by David Sherman [72.47.9.228] on Wednesday, March 23, 2011 at 21:53:53 :
In Reply to: Re: O.T. Gas powered rock drill posted by Jess [173.180.100.98] on Wednesday, March 23, 2011 at 21:08:29 :
Thanks for the good info. It sounds like you really know your stuff. Good to know it uses regular steels and both are good tools. I can afford $400-$700 so will keep looking. What do these do for water? Do they have a water hookup or how else do they blow the chips out of the holes? It seems like I read something about the Cobra having a small built-in air compressor to blow air through the steel. Have you ever used one to drive split-set rock bolts?
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