Cobalt laum cov khoom, kev daws teeb meem rau cov ntawv thov kub thiab drilling harder hlau. Nws ntxiv ib theem ntawm cobalt rau high-speed steel, tshwj xeeb tshaj yog tsim los rau siab kub thiab ua tau zoo thaum drilling stainless hlau thiab lwm yam ntaub ntawv tawv.
Peb cov cobalt laum khoom yog tshwj xeeb rau lawv cov kav ntev thiab kev ua haujlwm. Tsis zoo li cov hss laum cov khoom siv, cobalt laum cov khoom siv tau ruaj khov thiab tuaj yeem tiv taus qhov xav tau kev ua haujlwm drilling. Lawv xyaum qhov nrawm dua thiab ua tau zoo, ua rau lawv xaiv zoo tshaj plaws rau cov kws tshaj lij thiab cov neeg nyiam DIY ib yam nkaus.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm peb cov cobalt laum khoom yog lawv cov cua sov ua haujlwm, tso cai rau lawv ua haujlwm rau lub sijhawm ntev yam tsis muaj cua sov los yog poob haujlwm. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas yuav tsum tau ua kom tsis tu ncua drilling, ua kom tsis muaj kev cuam tshuam thiab ua haujlwm tau zoo.
Peb lub Hoobkas muab ob qhov sib txawv cobalt laum khoom kom tau raws li qhov sib txawv drilling xav tau. M35 steel laum khoom muaj 5% cobalt thiab raug cim "hss co" ntawm lub laum me ntsis shank. Cov laum cov khoom no muab lub zog zoo dua thiab muaj zog rau ntau yam kev siv drilling.
Rau kev ua tau zoo dua, peb kuj muab cov khoom zoo M42 steel laum khoom, uas muaj 8% cobalt. Cuam tshuam "HSS CO8" ntawm lub shank, cov laum khoom no tshwj xeeb tsim los muab kev ua haujlwm tsis sib xws thiab kev ua haujlwm ntev. Lawv tau tsim los tswj cov haujlwm nyuaj tshaj plaws nrog kev yooj yim, ua rau lawv xaiv qhov kawg rau cov kws tshaj lij uas xav tau qhov kev ua tau zoo tshaj plaws.
Kev nqis peev hauv peb cov khoom siv cobalt thiab paub qhov txawv ntawm kev ua tau zoo thiab kav ntev. Hais goodbye rau qeeb, tsis muaj peev xwm drilling thiab txais tos rau lub sijhawm tshiab ntawm kev nrawm dua, meej dua, thiab kev daws teeb meem ntev dua. Nrog peb cov cobalt laum cov khoom, koj tuaj yeem daws txhua qhov kev sib tw drilling nrog kev ntseeg siab thiab ua tiav cov txiaj ntsig zoo txhua lub sijhawm.