With a precision made high quality 90° gear drive. Great for the hard to reach areas we all know so well. The handle comes with a lock & un-lock detent action, that will allow or prevent the handle from rotating. Bits for most applications included but can be used with all universally available 1/4″ or 6mm bits. Made of stainless steel and aircraft grade aluminum. Max torque 60 lb/ft. Overall length 17.5″ (44.5cm).