This folding hand rivet is a handy tool which can be used to drive rivets. it is also referred as pneumatic hammer as it acts like a hammer. The energy from the hammer in the rivet drives the work and the rivet against the bucking bar. As a result, the tail of the rivet is compressed and work-hardened.Its applicable in rivet size 3.2mm,4.0mm,4.8mm,6.0mm and 6.4mm