4-in-1 screwdriver

[mklotz]

If yours is like mine the hex section on the bits is 5/16" AF. Sadly, that means that the tool can't accept any of the myriad 1/4" driver bits that are available everywhere.

I do have a handle from an older gun screwdriver kit that accepts 1/4" bits. What makes it almost as useful as the 4-in-1 design is the fact that the handle is bored out and fitted with a threaded cap. That means that one can carry an assortment of bits in the handle. The fact that the bits can be preloaded to suit the anticipated job is especially useful although a selection of two or three sizes each of flat and Phillips plus a few common hex sizes will deal with most jobs.

You might want to think about making such as a companion to your 4-in-1. Alternatively, there's probably several models available on Amazon.