This is a FW21 MM AF ring end torque wrench. 1988 for new head bolts. Complies with ISO 6789 & BS6703 standards.  These are extra tools that the Coventry Foundation have and are liquidating.  These are from the same group of tools that the JCNA uses to run the tool loan program.  If you don't want to borrow the tools, here is your change to own them. These are genuine factory tools, not cheap reproductions.  It is the buyers responsibility to make sure the tool is used properly. This tool might be designed to be used with other tools and might not do the job by itself.  The factory shop manual will list part numbers of tools required for the job.  The tool catalogs are also available for download from the JCNA site under tool loan. These tools are not returnable if used. Please ask any questions if you are unsure.  Shipping is additional. Lower 48 only. Write if elsewhere.