Msoko wowongoka wowotcherera chitoliro pamwamba ndikuzimitsa kutentha kwa kutentha nthawi zambiri kumachitika ndi kutenthetsa kolowera kapena kutentha kwamoto.Waukulu luso magawo ndi pamwamba kuuma, m`deralo kuuma ndi ogwira anaumitsa wosanjikiza kuya.Kuyesa kuuma kumatha kugwiritsa ntchito Vickers hardness tester, Rockwell kapena Rockwell hardness tester ingagwiritsidwenso ntchito.Pamene kutentha kwapamwamba kumawumitsidwa wosanjikiza ndi wandiweyani, Rockwell hardness tester ingagwiritsidwenso ntchito.

Ngati kuuma kwa zigawo zikuyenera kukhala kwakukulu, kuzimitsa ndi njira zina zingagwiritsidwe ntchito pozimitsa kutentha kwapafupi.Chitoliro chowongoka choterechi chowongoleredwa nthawi zambiri chimadziwika ndi malo omwe amazimitsa kutentha kwanthawi yayitali komanso kuuma kwapakati pazithunzi.Kuyesa kuuma kwa chitoliro chowongoka chowongoleredwa kuyenera kuchitidwa m'dera lomwe mwasankha.

Miyezo itatu yowuma ya Vickers, Rockwell ndi Surface Rockwell imatha kusinthidwa mosavuta wina ndi mnzake ndikusinthidwa kukhala miyezo, zojambula kapena kuuma komwe kumafunidwa ndi ogwiritsa ntchito.