I have owned and used probably most if not all of the drivers listed,and some of the interchangeable bit models available are good quality and have a place. I would not say they are a substitute for separate sized drivers,just another option. They make sense if space/weight is an issue,such as air travel hand luggage etc,but most lads have a vehicle,or at least the bus! Another issue,is to ensure that the handle,and individual bits,are easily available,if lost,or it's useless jigsaw time again...And on repetition work,say pulling off and checking six double socket fronts,you may need three differing bit sizes,which could mean six changes of bit...which i feel is an unnecessary act. I saw a lot of lads buying these sets,at the last tool show i visited,and snazzy they looked too,but i guarantee their old drivers did not take early retirement :bobby:
