Kev yuav ib txheej ntawm kev xyaum ua rau koj txuag nyiaj thiab - txij li lawv ib txwm tuaj hauv qee lub thawv - muab koj yooj yim khaws cia thiab kev txheeb xyuas.Txawm li cas los xij, zoo li qhov sib txawv me me ntawm cov duab thiab cov khoom tuaj yeem muaj kev cuam tshuam loj rau tus nqi thiab kev ua haujlwm.
Peb tau muab tso ua ke cov lus qhia yooj yim ntawm kev xaiv lub laum me ntsis nrog qee cov lus qhia.Our top pick, IRWIN's 29-Piece Cobalt Steel Drill Bit Set, tuaj yeem ua txhua yam kev ua haujlwm drilling - tshwj xeeb tshaj yog cov hlau tawv, qhov chaw xyaum cov khoom yuav ua tsis tiav. .
Txoj hauj lwm ntawm lub laum yog yooj yim, thiab thaum lub hauv paus groove tsim tsis tau hloov rau ntau pua xyoo, lub taub hau tuaj yeem sib txawv kom ua tau zoo ntawm cov khoom sib txawv.
Feem ntau hom yog twist drills los yog ntxhib drills, uas yog ib tug zoo tagnrho-nyob ib ncig ntawm kev xaiv.Ib me ntsis variation yog lub brad tip laum, uas yog tsim los siv ntoo thiab muaj ib tug nqaim, ntse ntsis uas tiv thaiv lub xyaum ntawm txav ( kuj hu ua taug kev).Masonry khoom ua raws li tus qauv zoo sib xws rau twist xyaum, tab sis muaj ib tug dav, tiaj tus taub los tuav lub siab muaj feem cuam tshuam.
Ib zaug ntau tshaj li ib nti ntawm txoj kab uas hla, twist xyaum ua impractical.Lub laum nws tus kheej los ua hnyav heev thiab loj. Cov kauj ruam tom ntej yog lub spade laum, uas yog tiaj tus nrog spikes ntawm ob sab thiab ib tug brad taw tes nyob rau hauv nruab nrab.Forstner thiab serrated khoom. kuj tseem siv tau (lawv tsim cov qhov huv huv dua li cov khoom siv spade, tab sis raug nqi ntau dua), qhov loj tshaj plaws yog hu ua lub qhov saws.Ses tsis txhob drilling ib lub qhov hauv qhov kev xav, cov no txiav tawm ib lub voj voog ntawm cov khoom siv.Qhov loj tshaj plaws tuaj yeem txiav qhov ob peb nti hauv txoj kab uas hla hauv pob zeb lossis cinder blocks.
Feem ntau cov laum khoom yog ua los ntawm kev kub ceev steel (HSS).Nws yog pheej yig, kuj yooj yim los tsim cov ntse txiav, thiab ruaj khov heev.Nws tuaj yeem txhim kho nyob rau hauv ob txoj kev: los ntawm kev hloov cov hlau los yog txheej nrog lwm cov ntaub ntawv. .Cobalt thiab chrome vanadium steels yog cov piv txwv ntawm cov qub.Lawv tuaj yeem tawv heev thiab hnav-tiv taus, tab sis lawv kim heev.
Cov txheej txheej yog pheej yig dua vim tias lawv yog cov txheej nyias nyias ntawm HSS lub cev.Tungsten carbide thiab dub oxide yog nrov, zoo li titanium thiab titanium nitride. Pob zeb diamond-coated laum khoom rau iav, ceramic thiab masonry khoom loj.
Ib txheej txheej ntawm lub kaum os lossis yog li HSS cov khoom yuav tsum yog tus qauv hauv cov khoom siv hauv tsev.Yog tias koj tawg ib qho, lossis yog tias koj muaj kev xav tau tshwj xeeb tshaj li qhov nws tau txais, koj tuaj yeem yuav ib qho kev hloov pauv.Ib txheej me me ntawm cov khoom siv masonry yog lwm DIY. staple.
Tsis tas li ntawd, nws yog ib lo lus qub hais txog kev muaj cov cuab yeej tsim nyog rau txoj haujlwm. Sim ua qhov tsis ncaj ncees lawm los ua txoj haujlwm yog kev ntxhov siab thiab tuaj yeem rhuav tshem qhov koj ua.Lawv tsis kim, yog li nws ib txwm tsim nyog nqis peev hauv lub hom cai.
Koj tuaj yeem yuav cov cuab yeej siv pheej yig rau ob peb bucks, thiab qee zaus ua koj tus kheej, txawm hais tias lawv feem ntau npub sai sai.Peb yuav tsis pom zoo cov khoom siv tsis zoo-feem ntau, lawv siv tsis tau.Av ntau yam zoo. Lub hom phiaj dav dav laum cov khoom muaj nyob rau ntawm $ 15 txog $ 35, suav nrog cov khoom loj SDS masonry khoom.Tus nqi ntawm cobalt yog siab, thiab cov khoom loj tuaj yeem ncav cuag $ 100.
A. Rau cov neeg feem coob, tej zaum tsis yog. Feem ntau, lawv tau teeb tsa ntawm 118 degrees, uas yog qhov zoo rau cov ntoo, feem ntau cov ntaub ntawv sib xyaw, thiab cov hlau mos xws li tooj dag lossis txhuas. , lub kaum sab xis 135 degree pom zoo.
A. Nws yog qhov nyuaj me ntsis los ntawm kev siv tes, tab sis muaj ntau yam khoom siv sib tsoo lossis cov laum nyias nyias muaj.
Peb nyiam dab tsi: Kev xaiv dav ntawm ntau qhov ntau thiab tsawg hauv qhov yooj yim rub-tawm cassette.Heat thiab hnav resistant cobalt rau kev pab cuam lub neej ntev.Lub kaum sab xis 135-degree muab cov hlau txiav zoo. Roj hmab khau raj tiv thaiv rooj plaub.
Peb nyiam dab tsi: Tus nqi zoo, tsuav koj nkag siab txog cov kev txwv ntawm HSS bits.Muab cov tho thiab tsav tsheb rau ntau txoj haujlwm nyob ib ncig ntawm lub tsev, chaw nres tsheb thiab lub vaj.
Peb nyiam dab tsi: Muaj tsuas yog tsib lub laum khoom, tab sis lawv muaj 50 qhov ntau thiab tsawg.Titanium txheej rau durability.Self-centering tsim, siab precision.Flats ntawm shank tiv thaiv chuck los ntawm slipping.
Bob Beacham yog tus kws sau ntawv rau BestReviews.BestReviews yog lub tuam txhab tshuaj xyuas cov khoom lag luam nrog lub hom phiaj: los pab ua kom yooj yim rau koj cov kev txiav txim siab yuav thiab txuag koj lub sijhawm thiab nyiaj txiag.BestReviews yeej tsis lees txais cov khoom dawb los ntawm cov tuam txhab thiab siv nws cov nyiaj los yuav txhua yam khoom nws tshuaj xyuas.
BestReviews siv ntau txhiab teev tshawb fawb, tshuaj xyuas thiab tshuaj xyuas cov khoom kom pom zoo cov kev xaiv zoo tshaj plaws rau cov neeg siv khoom feem ntau.BestReviews thiab nws cov neeg koom nrog cov ntawv xov xwm tuaj yeem tau txais txiaj ntsig yog tias koj yuav khoom los ntawm ib qho ntawm peb cov kev sib txuas.
Post lub sij hawm: Feb-16-2022
