[Coral-List] Underwater Drill

[John Cubit]

For drilling holes (not cores) in hard substrata, rotary hammer drills 
are much faster than plain rotary drills. There are pneumatic versions. 
Google for more info.

aj.martignette at comcast.net wrote:
> I have to drill some holes in pilings for large bolts that will be used to mount water quality sensors. I would like to avoid having to drill them with a hand drill. I know that you can use a pneumatic drill hooked up to a scuba tank. I was wondering if anyone had details on a setup they use and any modifications that are needed to the drill.
>
> Thanks 
>
> A.J. Martignette
> Research Assistant
> Marine Laboratory
> Sanibel-Captiva Conservation Foundation 
> 900A Tarpon Bay Rd. 
> Sanibel, Fl 33957
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> Coral-List at coral.aoml.noaa.gov
> http://coral.aoml.noaa.gov/mailman/listinfo/coral-list
>   

-- 
John Cubit, Ph.D.
Regional Resource Coordinator, Southwest Region
NOAA Assessment and Restoration Division, Suite 4470  
501 W. Ocean Blvd.  
Long Beach, CA 90802  
 
John.Cubit at noaa.com  
tel 562 980-4081  
fax 562 980-4084  
 
Cell phone (for urgent matters and travel contact) 562 810-4949