The Gross 40403 Riveter is a robust, cast-body hand tool designed for securing pop rivets ranging from 2.4mm to 4.8mm. Built for demanding assembly and repair tasks, its reinforced internal mechanism and ergonomic handle design deliver consistent force with minimal effort—ideal for sheet metal work, ducting, automotive, and general fabrication. This riveter accommodates multiple rivet sizes and features four interchangeable nosepieces stored conveniently in the handle.