For hand-operated sockets with square drive as per DIN 3120, ISO 1174, with ball locking device.
Holding magnet securely fixes the screws in the socket.
One-hand operation - using the socket the screw can be immediately screwed in.
Due to a spring mechanism the holding magnet is always in direct contact with the screw head.
Ensures that the screw is centrally guided.
Strong permanent magnet keeps hold of even large screws.
Makes work easier particularly in confined spaces.