Step 1 Rivet is inserted into work and installation tool is placed over pintail as tool is actuated.

Step 2 Grip adjuster enters blind side of sleeve shearing off a small ring "donut" and starts blind head formation.

Step 3 Blind head formation initiates sheet take-up and spindle begins extrusion of internal solid lock.

Step 4 Installation complete, Internal solid lock is formed

Entire installation sequence takes less than 2 seconds hole-fill is complete, sheet take-up complete, spindle breaks flush,