Tools, Sharpening and Power Machinery - Hex Drill

I have a drill that accepts hex drill bits. I have drill bit set that has the old traditional round end. Is there and adapter that converts the round end to hex?

I did buy something a while back from BlackNDecker that can do this but it is more of an extension. You would basically put the drill bit with the round end in and use an allen wrench to tighten it in place. The other end is a hex which goes into the drill.

I am looking for something like that. The one I have right now is 12 inches long.

1/4" Hex Bit Adapter Keyless Chuck - Professional Drill Chuck Products (http://www.jacobschuck.com/product_details.asp?pid=44)

Probably others out there.

Found this one, but it's not key-less.

http://www.buyhardwaresupplies.com/?t=5&itemNumber=28108

Thanks for the reply!

I think this is exactly what I am looking for.

Make it Snappy Drill Bit Adapters (http://www.snappytools.com/products/dadapters.asp)

Snappy Quick-Change Drill Bits (http://www.coastaltool.com/a/ab/snappy/drill_bits.htm)

Well, with the Snappy things..what happens when you need to buy another bit, you have to buy another adapter? And the length looks kinda long. I'd rather have a regular chuck of some sort.