Cobalt laum cov khoom, cov tshuaj rau kev siv kub siab thiab tshuab hluav taws xob nyuaj. Nws ntxiv qib ntawm cobalt rau high-ceev steel, tau tsim tshwj xeeb rau kev kub thiab ua tau zoo thaum muaj kev sib tsoo cov ntaub ntawv tawv.

Peb cov hlua khialal yog qhov tshwj xeeb rau lawv cov kev ua haujlwm tsis ntev thiab ua tau zoo. Tsis zoo li tus HSS laum tawm, cobaltal laum cov raj muaj ruaj thiab tuaj yeem tiv thaiv qhov xav tau cov haujlwm xav tau cov haujlwm. Lawv laum qhov nrawm dua thiab ua rau lawv cov kev xaiv zoo tshaj plaws rau cov kws tshaj lij thiab DIY txaus siab ib yam nkaus.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm peb cov cobalt laum kev ua haujlwm yog lawv cov cua sov tsis kam, cia lawv ua haujlwm rau ncua sijhawm tsis muaj kev ua haujlwm dhau los yog poob hauj lwm. Qhov no ua rau lawv zoo tshaj plaws rau cov ntawv thov yuav tsum tau ua kom dej tsis ntev los, ua kom muaj kev tsis txaus ntseeg.

Peb lub Hoobkas muab ob lub cobalt laum loj kom tau raws li kev xav tau sib txawv. M35 HLAU LAUM Bits muaj 5% Cobalt thiab yog cim "HSS Co" ntawm lub laum me shank. Cov khoom laum no muab lub zog zoo dua thiab tawv rau ntau yam ntawm kev siv drilling.
Rau kev ua tau zoo dua, peb kuj muab cov khoom zoo M42 zoo, uas muaj 8% cobalt. Cim "HSS Co8" ntawm Shank, cov khoom laum no tshwj xeeb yog tsim los muab cov khoom siv tsis sib haum xeeb thiab ntev. Lawv tsim los daws cov haujlwm nyuaj tshaj plaws nrog kev yooj yim, ua rau lawv xaiv qhov kawg rau cov kws tshaj lij uas xav tau kev ua tau zoo tshaj plaws.
Kev nqis peev ntawm peb lub cobalt laum cov laum thiab cov kev paub qhov sib txawv hauv kev ua tau zoo thiab kav ntev. Hais qhov zoo dua rau qeeb, ua tsis tau zoo thiab txais tos lub sijhawm tshiab sai dua, ntau qhov tseeb, thiab cov kev daws teeb meem ntev dua. Nrog peb cov cobalt laum cov raj, koj tuaj yeem tiv thaiv txhua qhov kev sib tw drilling nrog kev ntseeg siab thiab ua tiav cov txiaj ntsig tau tshwm sim txhua zaus.