Their specially coated.8" CORINOX Machinists File - Hand (2 Safe Edges), Cut 0 With a surface hardness of 1,200 HV (Vickers Scale), 70 HRC (Rockwell Scale), these files offer excellent wear resistance and long service life.
8" CORINOX Machinists File - Hand (2 Safe Edges), Cut 0 With a surface hardness of 1,200 HV (Vickers Scale), 70 HRC (Rockwell Scale), these files offer excellent wear resistance and long service life. Their specially coated.