Hauv cov chaw tsim khoom lag luam, cov hnab looj tes tiv thaiv feem ntau yog hnab looj tes. Cov khoom siv hauv ob sab phlu zoo thiab cov txheej txheem dipping mature tuaj yeem muab kev nyab xeeb ntawm tes. Piv txwv li, qhov zoo tshaj plaws-muag kev ruaj ntseg txhais tes tiv thaiv tsheb tsav tsheb siv cov hnab looj tes tawv tawv tuaj yeem muab kev hnav zoo thiab tsim kua muag rau qhov chaw ua haujlwm sib txawv, thiab tsim nyog rau kev ua haujlwm precision, kho tshuab thiab lwm yam kev ua haujlwm. Txawm hais tias nws yog cov neeg ua haujlwm tsim kho, cov neeg nqa khoom thauj khoom, lossis cov neeg ua haujlwm hauv kev cob qhia, lawv txhua tus cia siab rau lawv txhais tes los tsim tus nqi, thiab kev tiv thaiv tes zoo yog qhov tsim nyog rau kev nyab xeeb thiab txhim kho kev tsim khoom. Hauv kev tsim khoom lag luam, cov hnab looj tes tiv thaiv tuaj yeem ua lub luag haujlwm tiv thaiv zoo heev thiab tiv thaiv cov tes ntawm kev ua haujlwm ntawm kev raug mob mus rau qhov loj tshaj plaws.
