86660 / NG-R22-SDT Refrigerant Screwdriver for R22 / NG and NS Locking Caps Used for Novent NG and NS Locking Caps Replaces / Supersedes: 86660 , Airtec , Novent NV-MULTI , NVMULTIKEY , NV-Multi Key , Rectorseal and other Refrigerant Security / Safety Cap.