Hand drills are convenient but often are limited in use because the bulk of the drill body interferes with their utility. This 14inch chuck extender with 3/8inch capacity keyed chuck makes it possible to do many more things with a hand drill. With it you can drill (or drive screws) in areas that would normally be unreachable. It also allows you to use a number of accessories that would be unmanageable if chucked directly in a drill. The sliding aluminum handle on the chuck extender lets you apply greater lateral force on attachments with all the stress being absorbed by the extender chuck; not the drill chuck.