For the past few years I have worked for a construction firm doing maintainence,alterations and new work in a large chemical factory although they are downsizing and have already demolished several large buildings wich means less work for us,their are a lot of flameproof areas in the factory where you cannot use electric or battery tools and air tools are not always an option so I use my wheelbrace,swing brace and yankee screwdriver a lot, well this week I broke my last pozi bit so this morning I went to my local toolshop and the owner said that he has not been able to get bits for a while and that a rep had just told him that stanley have discontinued yankee screwdrivers as with the advent of battery drills there is no market for them so I would advise anyone that does use them that if you see one going cheap snap it up as I intend to one thing you dont have to worry about batteries being charged,I have been trying to find an adapter but with no success yet but will keep trying.