A fastener installation tool, comprising: a nose assembly having a longitudinal axis, said nose assembly being adapted to apply an axial force to a fastener along said longitudinal axis of said nose assembly; a first cylinder having a longitudinal axis that is parallel to said longitudinal axis of said nose assembly; a second cylinder having a longitudinal axis that is parallel to said longitudinal axis of said nose assembly, said longitudinal axis of said second cylinder being diametrically opposed to said longitudinal axis of said first cylinder about said longitudinal axis of said nose assembly; a first piston disposed within said first cylinder, said first piston being adapted to move with respect to said first cylinder along said longitudinal axis of said first cylinder; a second piston disposed within said second cylinder, said second piston being adapted to move with respect to said second cylinder along said longitudinal axis of said second cylinder; a yoke connecting said nose assembly, said first piston, and said second piston, such that motion of one of said first and second pistons along said longitudinal axis of a corresponding one of said first and second cylinders causes corresponding motion of at least a portion of said nose assembly along said longitudinal axis of said nose assembly and causes corresponding motion of another one of said first and second pistons along said longitudinal axis of a corresponding one of said first and second cylinders; characterised by a guide rod connecting said yoke to said nose assembly , wherein the yoke and the nose assembly are at opposite ends of the first piston and the second piston . a nose assembly having a longitudinal axis, said nose assembly being adapted to apply an axial force to a fastener along said longitudinal axis of said nose assembly; a first cylinder having a longitudinal axis that is parallel to said longitudinal axis of said nose assembly; a second cylinder having a longitudinal axis that is parallel to said longitudinal axis of said nose assembly, said longitudinal axis of said second cylinder being diametrically opposed to said longitudinal axis of said first cylinder about said longitudinal axis of said nose assembly; a first piston disposed within said first cylinder, said first piston being adapted to move with respect to said first cylinder along said longitudinal axis of said first cylinder; a second piston disposed within said second cylinder, said second piston being adapted to move with respect to said second cylinder along said longitudinal axis of said second cylinder; a yoke connecting said nose assembly, said first piston, and said second piston, such that motion of one of said first and second pistons along said longitudinal axis of a corresponding one of said first and second cylinders causes corresponding motion of at least a portion of said nose assembly along said longitudinal axis of said nose assembly and causes corresponding motion of another one of said first and second pistons along said longitudinal axis of a corresponding one of said first and second cylinders; characterised by a guide rod connecting said yoke to said nose assembly , wherein the yoke and the nose assembly are at opposite ends of the first piston and the second piston . <EOS>