Telescopic earthing rod, spindle with cross pin. Working head with robust aluminum bayonet coupling and pressure spring for secure hold of the freely guided earthing and short-circuiting device for earthing and short-circuiting on outdoor switchgear and overhead lines in accordance with DIN VDE 0105-100 (EN 50110). Continuously telescopic with robust aluminum star grip. End part with twist-proof plastic plug coupling for simple and quick handling extension including end piece ring eyelet.