NP-R410-SDT Refrigerant Screwdriver for R410A / NP and NPE Locking Caps Used for Novent NP and NPE EURO Locking Caps Replaces / Supersedes: 86688 , Airtec , Novent NV-MULTI , NVMULTIKEY , NV-Multi Key , Rectorseal and other Refrigerant Security / Safety Cap.