For manual sockets with through hole and square drive according to DIN 3120, ISO 1174, with ball locking device, Holding magnet fixes the screws or nuts in the socket insert captively, One-handed operation - The screw or nut can be screwed in immediately with the socket wrench, The magnetic field of the holding magnet keeps the screws and nuts in the center of the socket without direct contact., The powerful magnet holds even large screws, Particularly suitable for work in confined spaces, Vanadium steel 31CrV3, chrome plated
