Buy a cheap set of electrician's plastic-handled, long-shaft, screwdrivers, then hammer the handles off. You now have a set of long-drivers. Mine are 9" long. I have seen 13" (more $$$). Also,,, the shafts are often fluted to prevent handle twist, which may not fit tightly into your driver chuck. My small impact /drill driver works fine with one of the two flutes ground off. If your are using a twist-drill chuck, this may not be necessary. Check the electronics-industry drivers. I found a set of 10inch star drivers, used in most plastic appliances.