Quick release self-locking extension rod $ 6.26 Hexagonal quick release self-locking extension rod 60/100/150mm 10111C (3 golden three slots) 10114C (three red inner bullets) Features: The interface has a locking mechanism and a built-in strong magnet It is suitable for the transfer of electric drills, screwdrivers, wind screwdrivers, etc., to extend the conversion of various bits and screwdrivers; fast and fast; greatly improve work efficiency. Special reminder: This extension rod can only be used for single-ended batching nozzles, but not for double-ended batching nozzles! ! ! It can be used for the transfer and quick change of imported and domestic 1/4 electric screwdriver, manual screwdriver, electric drill air screwdriver and other tools