Metallurgical Integrity & Hardness
Standard manicure nippers often flex or dull when trimming thick, mycotic (fungal), or tough toenails. Professional pedicure pliers manufactured by Espak utilize high-carbon martensitic stainless steel (AISI 420 or 440A/440C). Vacuum heat treatment yields a Rockwell Hardness rating of HRC 50–54, providing optimal edge retention without brittleness.