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[Jim Kerr]

Yea I saw that too, based on what Jim wrote I am planning on drilling with frequent stops.  I may use some "thread cutting oil" to lube the bit.  I really dont have an answer yet.  When the bit finally gets here I will let you know how it goes.  They are talking about useing water to cool it when cutting into cement...I think.  It only needs to work once and I will be happy.

The bits have more of a blunt tip that is designed to grind instead of drilling.  They are designed to make a smooth finish on the outside while preserving the core you are pulling.  I had to put some oil on mine to keep the drillbit tip temp down.  The key is to keep constant pressure, but do not force it.  When you start feeling progress slowing, back off, let things cool, add some oil, then go at it again.   

[guppytrash]

Thanks Jim, still no bit, I will let you all know how it goes.

Guppytrash