Balanced force technique can be described as:
Positioning and preloading an instrument with a clockwise rotation and shaping with a counter clockwise rotation.
Insertion with a quarter turn clockwise rotation with slight apical pressure.
Cutting 180 degree to 270 degree counterclockwise rotation with apical pressure.
All of the above.
Balanced Force Technique
Balanced force technique was introduced by Roane et al, in 1985. In this technique, flex-R-files, flex-O files, or any other flexible files with a modified non-cutting tip are used.

Positioning and preloading an instrument with a clockwise rotation and shaping with a counter clock wise rotation
Insertion with a quarter-turn clockwise rotation with slight apical pressure 
Cutting 180°-270° counterclockwise rotation with apical pressure.