The resistant tweezers. With a 616HV Vickers-hardness, the tip of Rubis DURAX tweezers is six times harder than the tip of a standard steel tweezers. Even with intensive use, Rubis DURAX tweezers retain their original precision. The advanced material properties guarantee higher resistance against normal wear and tear, providing a considerably longer service life. Their specially-hardened chrome-magnesium steel is also used in the manufacture of surgical