The Bosch GRG 18V-16C Professional Rivet Gun built for connecting pre-drilled metal workpieces in HVAC and electrical installations, metal construction, roofing and facade installations, and auto service repair, among others. It has a brushless motor and tool status indicator on the HMI display. This rivet gun has two modes: AUTO for automatic running of the riveting operation and MANUAL for individual control of the working operation. Built-in Bluetooth connectivity allows users to customise and track their tool maintenance schedule via the Bosch Toolbox App. It comes with 4 nose pieces (3.0/3.2 mm, 4.0 mm, 4.8/5.0 mm, 6.4 mm), a wrench to easily change the nose pieces, a hanging ring, mandrel container, and a belt clip. Comes as a Bare Unit, NO battery or charger in a cardboard box. Compatible with all Bosch Professional 18V batteries. Also compatible with AMPShare, the multi-brand battery alliance. Specifications: Rivet Diameter: 3-6.4mm. Stroke Length: 0-25mm. Max. Pull Force: