Metal manicure implements (such as nippers and pushers) must be:

Metal manicure implements like nippers, pushers, and metal files are nonporous, reusable tools that must be cleaned and then disinfected with an appropriate EPA-registered disinfectant between every client, because they contact skin and nails and can transmit pathogens. (Porous items like wooden sticks and emery boards are single-use and discarded.) This applies the salon's clean-then-disinfect standard to nail tools. Knowing that reusable metal nail implements require disinfection between clients is a core infection-control point in the nail-services content.