KNIPEX Double Joint Control Cabinet Key (00 11 06 V03) The Knipex 00 11 06 V03 is a compact, versatile control cabinet key for engineers working across electrical, HVAC, gas and water sectors. Its double-joint design allows it to fold down to just 62mm for pocket storage, or extend to 124mm, where it can be used as a T-handle to apply greater torque to stiff or stubborn locks. ⚠️ Note: This key is not insulated for use on live circuits. Always isolate the supply before use. Key Features Dual-Length Versatility: Folds to a pocket-sized 62mm; extends to 124mm for better reach and leverage. High-Torque T-Handle: The jointed design allows the body to be used as a T-handle, providing maximum force transmission for tight installations.