Mipurogiramu yakanaka yekuveza mapuranga dzimwe nguva inoda kunge yakajeka, mabhesi-pasi-pasi nemasero anotsetseka. Izvi zvinonyanya kuitika kana kuvhara mabhuni emakona muplywood kana mapuranga emadziro . Mavara (dzimwe nguva anonzi paddle bits) anogona kudonha nokukurumidza asi haatauri mabheji . Uyezve, vanowanzo "bhururuka" nechemberi kwegomba kunze kwekucheka zvakachena pamucheto wegomba kumativi akareba ebhodi.
Twist bits inogona kukonzera ganda rakanyatsotarisa, asi pasi pegomba richagadzirwa, uye hazviwanzoshandiswa mumamita emadhora makuru kupfuura 1/2-inch. Auger bits rakakura pakukanda pasi nokukurumidza, asi masango ayo asiya kumashure zvirokwazvo haazopinduri chero mimwe mitambo yepamusoro, sezvo vachicheka zvakanyanya zvekutsvaga kupa nzvimbo yakachena. Hole saws inogona kushandiswa kupinza mumakomba e diameter kusvika 4-inches, asi haugoni kuchera gomba rakadzika-dzika rine gomba rakaona - inofanira kuva mumakomba.
Nekucheka gomba kuti ugadzire chidzitiro (nemugumo wakagadzirwa), zvakanakisisa zvezvisarudzo zvambotaurwa zvinogona kunge zvichinyatsooneka (izvo zvinogona kusiya chikamu chinotyisa uye chinenge chakaipa). (iyo inongowanikwa chete mumaduku maduku uye inosiya pasi yakanamatira kusvika mugomba).
Muzviitiko izvi, chisarudzo chakanaka chingave chiri kushandisa shanduko yeForstner , iyo yakagadzirirwa kuita zvikwangwani zvakajeka zvine mapapiro ebhururu (kunze kweiyo pfupi pfupi yepayipi mukati) mukati mutsvuku uye mukova wakachena unopera zvishoma nezvishoma chero rudzi rwehuni.
Kune mhando shomanana yakasiyana-siyana yeForstner bit, asi chinonyanya kukosha chechidiki ndechekugadzirisa mutsvuku iyo inoita zvakanyanya kufanana nekunyorera mabheji maviri . Sezvo chinenge chichikomba chakakomberedza nzvimbo yepamusoro, vatambi vaviri vanocheka kubva pahuni. Kana vakacheka paForstner bhakoro vakakosha, huni hunoonekwa hukacheka mucheka chips, zvakadai sezvikamu zveapulo peel.
Nzvimbo dzepamusoro dzepamusoro dzepamusoro dzakasvibirira mativi anochengetedza zvigaro mukati megomba uye anowedzera kumira kumativi ehuni zvishoma. Pasi pegomba richaramba rakanyatsotarisana nemhepo yakareba ye shank ya bit, hazvinei pasinei kuti gomba iri kukonzerwa zvakatarisana nechiso chebhodhi, kana kuti paakona. Nokuda kwemasango emwenje, kuva nechepamusoro-soro uye pasi rakaperera kunopa nzvimbo yakakwana yekugadzirisa nzvimbo yekugadzira chidziro mukati megomba.
Masikirwo eForstner Bits
Zvipfeko zveforstine zvinowanzouya mumakiti ane masimba akasiyana-siyana akabatanidzwa mukati mekutakura kate. Zvisinei, mamwe mavara akanaka emapurasiti anovatengesa mumwe nomumwe. Nyaya yepamusoro yepakati yekitsiti inotangira nediki duku pane anenge 3/8-inch uye chiduku chikuru pane anenge 1-inch. Dzimwe nguva, mabheti eForstner anogona kuwanikwa mumasikirwe makuru (kusvika kusvika 2-inch in diameter), asi kazhinji haawanika mudiki kudarika 3/8-inch.
Kushandisa Forstner Bit
Zvigaro zve Forstner zvinonyatsokodzera kushandiswa mumushandisi we drill kana mu chuck of a lathe . Nokuda kwenzira iyo vatambi vanoisa pasi pezvikanda zvakapetwa kuburikidza nemhuni, vanoda zvishoma zvishoma kudzvinyirira kushandiswa kushandisa, zvichiita kuti vasapedzisire vashandise kushandisa nesimba rinoshandiswa nemaoko. Zvisinei, nechisviniro che drill (uye huni inobatanidzwa zvakasimba panzvimbo patafura iri pasi pemvura inotonhora), imwe yeForstner inogona kucheka pamakumbo kana kucheka pamativi ebhodhi, chimwe chinhu icho chaizove chakamanikidzwa kuita ne a spade kana twist drill bit.
Zvidhakwa kuForstner Bits
Nokuda kwezvakanaka zvavo zvose, Forstner bits haana kukwana. Somuenzaniso, vanocheka zvishoma nezvishoma, uye vanogona kupisa kana vasina kuchengetwa. Uyezve, zvisinganzwisisiki kupinza zvipfeko kana kutema bits, Forstner bits usaita basa rakanaka rekudzivisa zvinhu zvakagadzirwa kubva mumugodhi, naizvozvo munhu anofanira kubvisa chiduku uye kubvisa zvinhu zvakagadzirwa nguva dzose paanenge achishandisa bit.