HKS Tone Fitting Wrench Set | HKS (15999-RK015)This kit includes HKS know how as well as the best selection of tools for building and maintaining tuning cars. This fitting wrench is compatible with any manufacturer of liquid line parts used in tuned cars such as oil, fuel, and water. This fitting wrench is made of steel, is very thin, and can be used even in a dense engine room, such as a tuning car. The exclusive set includes both newly manufactured items and items from the TONE tool's existing