This is the best way to get a bow drill to work with the least amount of time and effort. When I found out about this I will not go back to any other way. The bearing makes it so much more fun to. If you are a beginner to the friction fire ,then this is something that you want to carry in you bushcraft bag. You can find a fire board and the spindle and a stick for the bow, but your not going to find this out in the woods.
I put a link at the bottom of the page. Check it out its awesome.