These hydro-pneumatic handheld setting tools for speed rivets are designed for a gentle and reliable riveting. High-performance, robust and lightweight, the Mistral-1 can set speed rivets with diameter up to 4.8 mm, while the Mistral-1 can set rivets with diameter up to 6,4 mm. Gentle and shock-free riveting reduces the potential damage of materials. They require low maintenance. The new damping system improves the shock absorption of the device and protects the mechanical parts.