In Googling "drill bit guide" came across this and other tools like it:
Something like this seems perfect for being able to drill a straight hole through wood. However, I can't seem to find anything like it at Lowe's, Home Depot, or Menard's. Surely, I must not be searching properly as it would appear that such a tool would be a very handy addition to one's arsenal of precision tools.
What, exactly, is the industry term for such a tool that makes for the easy centering of a drill bit?