Franklin Miller cutters are available with a special hardfacing option. A heavy fused coating of chrome boride is bonded to the base metal at over 2000 degrees F. This coating has an abrasion resistance factor that is over 15 times greater than that of steel for greatly extended cutter life in abrasive service.

The coating consists of extremely hard particles of chrome boride in a nickle based matrix. The fused material has a hardness in excess of Rc65 yet does not cause the embrittlement experienced by hardened steels.

The nickle base makes this coating highly corrosion resistance as well.

Other coatings available from Franklin Miller include stellite or tungsten carbide hardfacings as well as teflon coatings for corrosion.