Gedore SB 3090 M Extension with Magnet 3/8" Square Drive Chromium-Vanadium Steel 120mm

For hand-operated sockets with through hole and square drive according to DIN 3120, ISO 1174, with ball locking device, The holding magnet securely fixes the screws or nuts in the socket, One-hand operation - the screw or nut can be screwed in immediately with the socket wrench insert, The magnetic field of the holding magnet holds screws and nuts centrally in the socket without direct contact, A strong permanent magnet keeps hold of even large screws, Perfect for work in confined spaces, Hot forged, Vanadium steel 31CrV3, chrome-plated