This universal parallel device is a full-automatic, peeling-free electrical wiring tool designed for fast and reliable wire connections. It supports 2.5–4mm2 cables and allows multiple wires to be connected in parallel without stripping insulation, greatly improving efficiency and safety during installation. The precision-machined metal body ensures durability, strong clamping force, and stable electrical conductivity. Clear scale markings help control insertion depth for consistent results. Ideal for electricians, technicians, and DIY users, this fast terminal tool reduces wiring time, minimizes errors, and delivers clean, professional connections in control cabinets, power distribution, lighting systems, and electrical repairs. Suitable for 2, 3, 4, or 5-wire parallel connections depending on configuration.