The Activation Key is a genuine Stihl replacement part designed for use with selected Stihl cordless tools. Made from a durable, high-visibility polymer and featuring a molded grip, this key is built for repeated insertion and removal without wearing down. When in place, the activation key completes the tool's internal safety circuit, allowing the machine to operate. When removed, it functions as a simple lock-out system to help prevent accidental startups and unauthorized use.
Stihl HSA 45, BGA 45, FSA 45