Kugula zida zoyeretsera zinthu kumakupulumutsirani ndalama ndipo—popeza nthawi zonse zimabwera m'bokosi—kumakupatsani malo osungiramo zinthu mosavuta komanso kuzizindikira. Komabe, kusiyana kochepa kwa mawonekedwe ndi zinthu kungakhudze kwambiri mtengo ndi magwiridwe antchito.
Tapanga chitsogozo chosavuta posankha seti ya drill bit yokhala ndi malingaliro ena. Chosankha chathu chabwino kwambiri, IRWIN's 29-Piece Cobalt Steel Drill Bit Set, imatha kuthana ndi ntchito iliyonse yobowola - makamaka zitsulo zolimba, pomwe drill bits wamba sizingagwire ntchito.
Ntchito ya kubowola ndi yosavuta, ndipo ngakhale kapangidwe ka pulawo sikasintha kwa zaka mazana ambiri, mawonekedwe a nsonga amatha kusiyanasiyana kuti agwire ntchito bwino pazinthu zosiyanasiyana.
Mitundu yodziwika kwambiri ndi ma drill opindika kapena ma drill opindika, omwe ndi njira yabwino yogwirira ntchito. Chobowola cha brad tip chosiyana pang'ono, chomwe chapangidwa kuti chigwiritsidwe ntchito ndi matabwa ndipo chili ndi nsonga yopapatiza, yakuthwa yomwe imaletsa kuti drill isasunthe (yomwe imadziwikanso kuti kuyenda). Zidutswa za zomangamanga zimatsatira njira yofanana ndi ma drill opindika, koma zimakhala ndi nsonga yayikulu, yathyathyathya kuti zigwire ntchito mwamphamvu kwambiri.
Akapitirira inchi imodzi m'mimba mwake, ma drill opindika amakhala osagwira ntchito. Bowolo lokha limakhala lolemera kwambiri komanso lolemera. Gawo lotsatira ndi drill yopindika, yomwe ndi yathyathyathya yokhala ndi mikwingwirima mbali zonse ziwiri ndi mfundo yolimba pakati. Ma bit a Forstner ndi serrated amagwiritsidwanso ntchito (amapanga mabowo oyera kuposa ma spade bits, koma amawononga ndalama zambiri), lalikulu kwambiri limatchedwa ma hole saw. M'malo mobowola dzenje mwachibadwa, izi zimadula bwalo la zinthu. Lalikulu kwambiri limatha kudula mabowo mainchesi angapo m'mimba mwake mu konkire kapena ma block a cinder.
Zidutswa zambiri zobowolera zimapangidwa ndi chitsulo chothamanga kwambiri (HSS). Ndi zotsika mtengo, zosavuta kupanga m'mbali zakuthwa, komanso zolimba kwambiri. Zitha kukonzedwa m'njira ziwiri: mwa kusintha kapangidwe ka chitsulocho kapena kuchipaka ndi zinthu zina. Zitsulo za Cobalt ndi chrome vanadium ndi zitsanzo za zoyambirirazo. Zitha kukhala zolimba kwambiri komanso zosawonongeka, koma zimakhala zodula kwambiri.
Zophimba zimakhala zotsika mtengo chifukwa zimakhala zopyapyala pa thupi la HSS. Tungsten carbide ndi black oxide ndizodziwika bwino, komanso titanium ndi titanium nitride. Zobowola zophimbidwa ndi diamondi za magalasi, ceramic ndi zidutswa zazikulu za miyala.
Seti yoyambira ya ma bits khumi ndi awiri kapena kuposerapo a HSS iyenera kukhala yokhazikika mu zida zilizonse zapakhomo. Ngati mwaswa imodzi, kapena ngati muli ndi zosowa zinazake zomwe simukuzifuna, nthawi zonse mutha kugula ina yosiyana. Seti yaying'ono ya ma bits a masonry ndi chinthu china chofunikira chomwe mumachita nokha.
Kupatula apo, ndi mwambi wakale wonena za kukhala ndi zida zoyenera pantchitoyo. Kuyesa kuchita masewera olimbitsa thupi olakwika kuti mugwire ntchitoyo n'kokhumudwitsa ndipo kungawononge zomwe mukuchita. Sizokwera mtengo, choncho nthawi zonse ndikofunikira kuyika ndalama pa mtundu woyenera.
Mukhoza kugula zida zobowola zotsika mtengo pamtengo wotsika, ndipo nthawi zina muzichita nokha, ngakhale kuti nthawi zambiri zimakhala zofewa msanga. Sitingakulangizeni kugwiritsa ntchito zida zobowola zotsika mtengo—nthawi zambiri, sizithandiza kwenikweni. Mitundu yosiyanasiyana ya zida zobowola zogwiritsidwa ntchito kwambiri imapezeka pamtengo wa $15 mpaka $35, kuphatikiza zida zazikulu zobowola za SDS. Mtengo wa cobalt ndi wokwera, ndipo zida zazikulu zimatha kufika $100.
A. Kwa anthu ambiri, mwina ayi. Kawirikawiri, zimayikidwa pa madigiri 118, zomwe zimakhala zabwino kwambiri pamatabwa, zinthu zambiri zopangidwa ndi zinthu zosiyanasiyana, ndi zitsulo zofewa monga mkuwa kapena aluminiyamu. Ngati mukuboola zinthu zolimba kwambiri monga chitsulo chosungunuka kapena chitsulo chosapanga dzimbiri, ngodya ya madigiri 135 ndi yabwino.
A. N'kovuta kugwiritsa ntchito ndi manja, koma pali mitundu yosiyanasiyana ya zida zopukusira kapena zopukusira zopatukana zomwe zilipo. Zopukusira za Carbide ndi zopukusira za titanium nitride (TiN) zimafuna chopukusira chopangidwa ndi diamondi.
Zimene timakonda: Kusankha kwakukulu kwa kukula kofanana mu kaseti yosavuta kukoka. Tenthetsani ndi kuwononga cobalt kuti ikhale nthawi yayitali yogwira ntchito. Ngodya ya madigiri 135 imapereka kudula bwino kwachitsulo. Nsapato za rabara zimateteza chikwamacho.
Zimene timakonda: Mtengo wabwino kwambiri, bola ngati mukumvetsa zofooka za HSS bits. Amapereka ma drill ndi ma driver a ntchito zambiri zapakhomo, garaja ndi m'munda.
Zimene timakonda: Pali mabowo asanu okha, koma amapereka mabowo 50. Chophimba cha titaniyamu kuti chikhale cholimba. Kapangidwe kodziyimira pakati, kolondola kwambiri. Chosanjikiza pa shank chimateteza chuck kuti isaterereke.
Bob Beacham ndi wolemba wa BestReviews.BestReviews ndi kampani yowunikira zinthu yomwe cholinga chake ndi kuthandiza kupanga zisankho zosavuta pogula zinthu ndikukupulumutsirani nthawi ndi ndalama. BestReviews silandira zinthu zaulere kuchokera kwa opanga ndipo imagwiritsa ntchito ndalama zake kugula chilichonse chomwe imawunikira.
BestReviews imathera maola masauzande ambiri ikufufuza, kusanthula ndi kuyesa zinthu kuti ipereke malingaliro abwino kwambiri kwa ogula ambiri. BestReviews ndi manyuzipepala omwe amagwira nawo ntchito angalandire ndalama ngati mutagula chinthu kudzera mu imodzi mwa maulalo athu.
Nthawi yotumizira: Feb-16-2022
