The 10-pc Flare Nut Socket Set, No. 12030, fromLisle Corporation is designed to allow access to difficult wired temperature sensors, thermo switches, and other components. The set works on ABS, master cylinder, coolant, and diesel injection sensors, as well as high pressure fuel lines. Its 3/8" square drive has a chrome finish and the set includes: 10mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, and 19mm, in a foam tray for storage.