A swaging tool for swaging, comprising: a housing comprising: a chamber having a first end , a second end , an inner wall , and an axis extending through the chamber , wherein the chamber is cylindrical; and a fixed swaging engagement member ; a movable swaging engagement member , a chamber portion of the movable swaging engagement member positioned within the chamber and translatable along the axis , the chamber portion having a spring engagement surface , a piston engagement surface opposite the spring engagement surface , and a through-hole extending through the spring engagement surface to the piston engagement surface ; a piston having a first or proximal end and a second or distal end opposite the first end , the proximal end of the piston positioned within the chamber at the second end of the chamber , the proximal end of the piston facing the second end of the chamber , the distal end of the piston comprising a distal face that abuts the piston engagement surface of the chamber portion of the movable swaging engagement member , the piston translatable along the axis , wherein there is a gap formed between an outer wall of the piston and the inner wall of the chamber , wherein the distal end of the piston has an axial bore with a counter-bored or recessed guide surface , wherein the piston engagement surface is sized and shaped to fit with the counter-bored or recessed guide surface , a fastener extending through the though-hole and securing the piston engagement surface of the chamber portion to the distal end of the piston ; and an actuator configured to drive the piston along the axis through the chamber of the housing from the second end to the first end such that the movable swaging engagement member moves toward the fixed swaging engagement member . a housing comprising: a chamber having a first end , a second end , an inner wall , and an axis extending through the chamber , wherein the chamber is cylindrical; and a fixed swaging engagement member ; a chamber having a first end , a second end , an inner wall , and an axis extending through the chamber , wherein the chamber is cylindrical; and a fixed swaging engagement member ; a movable swaging engagement member , a chamber portion of the movable swaging engagement member positioned within the chamber and translatable along the axis , the chamber portion having a spring engagement surface , a piston engagement surface opposite the spring engagement surface , and a through-hole extending through the spring engagement surface to the piston engagement surface ; a piston having a first or proximal end and a second or distal end opposite the first end , the proximal end of the piston positioned within the chamber at the second end of the chamber , the proximal end of the piston facing the second end of the chamber , the distal end of the piston comprising a distal face that abuts the piston engagement surface of the chamber portion of the movable swaging engagement member , the piston translatable along the axis , wherein there is a gap formed between an outer wall of the piston and the inner wall of the chamber , wherein the distal end of the piston has an axial bore with a counter-bored or recessed guide surface , wherein the piston engagement surface is sized and shaped to fit with the counter-bored or recessed guide surface , a fastener extending through the though-hole and securing the piston engagement surface of the chamber portion to the distal end of the piston ; and an actuator configured to drive the piston along the axis through the chamber of the housing from the second end to the first end such that the movable swaging engagement member moves toward the fixed swaging engagement member . <EOS>