Lever Action: It relies entirely on manual hand squeezing to pull the mandrel and set the rivet.Straight-Head Design: The nozzle is fixed in a straight line with the handle, making it ideal for open, easily accessible surfaces.Interchangeable Nosepieces: It includes four different built-in nozzle sizes (2.4mm, 3.2mm, 4.0mm, 4.8mm) [Image 3] to match different rivet thicknesses.