521 Tools, magnetic socket inserts. Metric sizes

There is nothing more frustrating than dropping a nut or bolt into a dark, inaccessible corner of a primary or frame. These Lang Tools magnetic socket inserts are a clever solution for any mechanic’s toolbox. Sold as a set of ten, these inserts fit firmly inside your existing metric sockets to hold fasteners securely in place during installation or removal. The set covers a wide range of common sizes, including 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, and 19mm. Because the magnets are removable, you can easily swap them between different sockets as needed. They provide that extra bit of confidence when working in restricted areas where a dropped fastener could mean hours of extra work.