Gerry - I'm not sure what the last part meant: "V Bits just drill as cleanly, from my experience." Did you mean to put "just don't drill as cleanly"? We thought about using brad points, but tool life is a big concern. Some of these patterns we are doing will require 9000+ holes be drilled on one 4x8 sheet (that's 8 2x2 ceiling panels), and the average is like 70 sheets. Typically, we change the tools every 10-12 sheets. Even if it's solid carbide, can it handle that load? Who is your supplier for those tools?