Typically this includes manufacturing environments or controls of service equipment where only qualified service engineers are permitted access to electrical/electronic enclosures or service access panels.
FDB engineers also point out that the FIAT spanner lock is ideal as a retro-fit to enhance security on existing equipment by virtue of its industry standard 20mm rounded square cutout installation. Other features include 90° cam rotation, LH and RH application, 90° stepped key removal, availability of multiple depth cams, as well as a 3 point cam for rod activation, and black or chrome finish.