Each of the handles on my multi-bit drivers end up being a little bit different from the other. However, each is made with a #2 magnetic shank. Which means you can use any #2 sized hexagonal bit you have. Ships with basic 6 piece flat and phillips head bit set in a magnetic wooden retainer.
If you would like something made out of a special piece of wood or in a particular shape, send me a message and we will work something out.