Txhua tus txiv neej hwm nws tus kheej muaj ntoo pom hauv nws cov khoom siv hauv tsev. Nws yog ib qho nyuaj ua tsis tau nws thaum lub sij hawm tsim kho thiab kho. Tsis tas li ntawd, lub hacksaw rau ntoo yog qhov tseem ceeb hauv kev saib xyuas ntawm lub tiaj nraum qaum tsev lossis lub caij ntuj sov tsev. Thaum xaiv cov cuab yeej tseem ceeb no, koj yuav tsum tau coj los ntawm nws cov yam ntxwv tseem ceeb: qhov ntev ntawm cov hniav, qhov loj ntawm cov hniav (zoo lossis loj), qhov tawv tawv ntawm cov hniav lossis nws qhov tsis tuaj.
Hacksaw yuav tsum ntev heev. Qhov no yuav tso cai rau sawing khoom ntoo ntawm yuav luag txhua qhov tuab. Ib txhais tes pom rau ntoo, uas yog hais txog 30 cm ntev, tsuas yog haum rau sawing me me tuav thiab battens. Rau kev ua hauj lwm nrog cov laug cam thiab cav, ib tug saw nrog ib tug hniav ntawm 45-50 cm yog optimally suited. Raws li txoj cai dav dav, qhov me me ntawm cov hniav, qhov smoother thiab ntxuav qhov txiav yuav zoo. Qhov ceev tshaj plaws sawing yog yooj yim los ntawm hacksaw hniav nrog cov hniav ntawm 6-8 hli. Nws yog qhov zoo tshaj plaws los ua hauj lwm nrog xws li ib tug saw nrog zoo tib yam cav, boards thiab qhov twg nws tsis muaj teeb meem dab tsi qhov zoo ntawm kev txiav. Rau kev ua haujlwm nrog cov rooj tog zaum, cov khoom siv kho kom zoo nkauj, thiab qhov twg yuav tsum muaj kev sib tw thiab huv si, nws yog ib qho tsim nyog yuav tau siv lub hacksaw nrog.cov hniav zoo (txog 3 hli). Xws li cov cuab yeej yuav tsum tau siv sij hawm ntau dua rau sawing, tab sis qhov txiav yuav tig tawm kom raug ntau dua. Kuj tseem muaj ntau hom saws rau ntoo, ntawm daim ntaub uas muaj cov hniav me me thiab loj tib lub sijhawm. Xws li cov saws hu ua "Kremlin hacksaws". Ntxiv rau qhov kev ncua deb ntawm cov hniav, lawv cov duab kuj tseem ceeb heev, txij li nws txiav txim siab qhov kev taw qhia ntawm sawing. Saws nrog cov hniav ncaj yog siv rau kev txiav ntoo, thiab nrog me ntsis inclined rau pem hauv ntej - rau longitudinal. Hacksaws nrog cov hniav sharpened rau ob sab txiav zoo thaum tsiv mus rau pem hauv ntej thiab rov qab. Xws li qhov sib txawv ntawm cov cuab yeej no ua rau qhov tseeb tias cov kws ua haujlwm paub txog ib txwm muaj ntau hom ntawm lawv.
Koj kuj yuav tsum ua tib zoo mus txog qib ntawm cov hniav tawv. Yog li, liab-kub sawv daws yuav siv sijhawm ntev dua, thiab tib lub sijhawm lawv tsis ua npub rau lub sijhawm ntev. Thaum siv cov cuab yeej zoo li no ntau zaus hauv ib xyoos, nws tuaj yeem ua haujlwm ncaj ncees rau lub neej. Xws li cov hniav tsuas yog tsis yooj yim sua kom ntse, yog li lawv suav hais tias yog pov tseg. Ib tug tsis-hardened hacksaw hniav tso cai rau sharpening cov hniav ntau zaus. Cov saws no zoo tshaj plaws rau kev siv tas mus li. Cov hniav tawv tawv yog qhov txawv ntawm cov yooj yim los ntawm lawv cov xim dub.
Ncua lub tshuab txiav ntoo yog lub sijhawm tseem ceeb, vim tias yog ua tsis raug, nws tuaj yeem ua rau lub cuab yeej puas tag.
Rau nws siv cov ntaub ntawv tshwj xeeb nrog rau qhov zoo. Feem ntau lawv raug cim nrog cov ntawv "kev sib tsoo",denoting "rau sharpening saws." Txhawm rau kom rov ua tiav qhov ntse ntawm cov hniav, tsuas yog ob peb lub zog ntawm cov ntaub ntawv xav tau. Abrasive log yog siv los ua kom nrawm nrawm. Txhawm rau teeb tsa cov hniav ntawm hacksaw, ib qho cuab yeej tshwj xeeb hu ua "txhim hluav taws xob" yog siv. Hauv qhov no, txhua tus hniav yog khoov rau sab (hloov mus rau sab xis thiab sab laug) raws tag nrho qhov ntev ntawm cov saw. Qhov zoo ntawm kev teeb tsa cov hniav tuaj yeem tshawb xyuas tau yooj yim thaum lub sijhawm ua haujlwm. Cov ntoo saws zoo yuav luag tsis tau daig hauv ntoo thaum saws nws.
