I-Digital Rockwell Hardness Tester ifakwe isikrini esikhulu sokubonisa esisanda kuklanywa esinokwethenjelwa okuhle, ukusebenza okuhle kakhulu nokubukwa kalula, ngaleyo ndlela siwumkhiqizo wobuchwepheshe obuphezulu ohlanganisa izici zikamakanika nezikagesi.