Fastener tools and methods

A tool comprising:

• a body comprising:
• a center axis;
• a first frame comprising a first opening that is concentric with the center axis;
• a second frame coupled to the first frame and comprising a second opening that is concentric with the center axis;
• and
• a ring disposed circumferentially about the first frame and the second frame;
• a plurality of pins extending between the first frame and the second frame and angularly spaced apart from each other around the center axis;
• a plurality of tubular rollers, wherein each one of the tubular rollers is concentric to and rotatable relative to an associated one of the pins about a respective rotation axis that is parallel to the center axis;
• a plurality of lugs extending between the first frame and the second frame;
• and
• a cam coupled to the ring and extending radially inward between the first frame and the second frame,
• wherein:
• the tubular rollers are radially movable relative to the center axis;
• the lugs limit radially inward movement of the tubular rollers;
• the ring is rotatable about the center axis relative to the first frame and the second frame;
• and
• rotation of the ring about the center axis in a first rotational engages the cam with the tubular rollers to move the tubular rollers radially inward.