Single-detent-groove socket and strong-magnetic detent-ball extension bar kit

A single-detent-groove socket and strong-magnetic detent-ball extension bar kit, comprising a socket body, wherein both ends of the socket body are provided with two socket openings of the same size, a socket opening hole with two regular hexagonal ends is formed in each socket opening, the socket opening holes at both ends are through, a detent groove is formed in the through internal hexagonal socket opening holes and configured to switch between the two socket openings of the same size at both ends;

• a matching extension bar is disposed in the internal hexagonal socket opening holes, and the extension bar includes a hexagonal shank configured to be mounted into a power tool, a buffer rod disposed on the hexagonal shank, an anti-slip portion disposed on the buffer rod, and a snap-in head disposed on the anti-slip portion and cooperating with either of the internal hexagonal socket opening holes, wherein a side wall of the snap-in head is provided with an elastic detent ball cooperating with the detent groove and configured to allow the snap-in head to be locked in the socket opening holes, and a magnet is disposed on a top of the snap-in head and configured to attract and hold an external hexagon screw during installation;
• wherein the internal hexagonal socket opening holes at both ends are identical in size and are mutually aligned in position, and used for dual-end switching to achieve dual functions.