Hand-held rivet nut (rivet bolt) tool with quick-change mandrel

A hand-held rivet nut tool comprising:

• a body including:
• a base having a bottom surface, two sides and a bore therethrough;
• a pair of handles respectively pivotally connected to the sides of the base;
• and
• a driven member disposed between the handles and having two sides respectively pivotally connected to the handles by links;
• a sleeve axially movably mounted through the bore of the base and including:
• a bottom portion extending from the bottom surface of the base and connected to the driven member;
• a central line;
• a hole formed in the central line of the sleeve and having an inner surface;
• and
• an annular mounting groove formed in the inner surface of the hole of the sleeve;
• a positioning ring seated in the annular mounting groove of the sleeve and including an inner portion extending from the inner surface of the hole of the sleeve;
• a mandrel rotatably mounted through the hole of the sleeve and including
• a shaft having:
• an outer surface;
• a top portion;
• an annular positioning groove foiined in the outer surface of the shaft and allowing the inner portion of the positioning ring to engage therewith;
• and
• a threaded portion formed on the top portion of the shaft;
• and
• a head connected to a bottom end of the shaft and having a non-circular annular flange extending from an outer surface thereof;
• a limit piece mounted around the mandrel and having a non-circular locking aperture therethrough for receiving the annular flange of the head of the mandrel;
• and
• a limit piece retainer put onto the head of the mandrel for avoiding the limit piece dropping from the annular flange of the head of the mandrel.