For driving long screws up to #10, nothing beats this tool.
The sleeve holds the screw in line with the bit and retracts as the screw is driven. The sleeve is free floating, so it can be held to provide more control.
The magnetic chuck has a 1/4" hex shank and accepts 1/4" hex-shank bits (not included).
The holder extends from 4 3/4" to 7 1/2" long.