Za neke obične mesing niklane attiye može i obično dobro nabrušeno svrdlo ali za inox - kobalt svrdla

http://nautika.vijci.com.hr/?p=688

ili

http://www.conrad.hr/websale8/?Ctx=%257 ... _searchbox

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There's a fine line between fishing and just standing on the shore like an idiot. ><((((º>-------------------------------------------



Modovi, akrilni stalci i 3D printanje

Ova moja su bila sa kobaltnim premazom i buseno je s malim brojem okretaja. Mislim da tu i lezi problem, jer su bila za celik. Za zeljezo bi trebala biti hss, ali me buni da li N ili E.

Sent from my U8650-1 using Tapatalk 2

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Devils Marble EVO, Nautilus Oddy klon, Hercules...
ipv Mini, Kaya lite v2+ klon

A bundeve? Jel mogu i bundeve?

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Dalmat

Daily drive: Russian 91%, Kayfun Lite Plus V2 klonjara, FT Nemesis x 2,
Ostalo: IGO-L x 2, ZMAX v3, Vamo V5, Chi You + AIOS hibrid, ASTRO + AIOS hibrid, Russian 91% klonjara, Taifun GT + ASTRO, Evolve Kick

Iscar zabusivaci,ja posudim kad mi zatreba:-D

Sent from ViperS

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Kad gledam sva ta svrdla, ovo je gore nego izabrati atty

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Dalmat

Daily drive: Russian 91%, Kayfun Lite Plus V2 klonjara, FT Nemesis x 2,
Ostalo: IGO-L x 2, ZMAX v3, Vamo V5, Chi You + AIOS hibrid, ASTRO + AIOS hibrid, Russian 91% klonjara, Taifun GT + ASTRO, Evolve Kick

Cini mi se da mislis na titanski premaz. Ta svrdla ... ajde nisu tako losa ali samo ako ih mozes hladiti emuzijom.
Cobalt je inace u sastavu samog materijala i ako se to svrdlo nabrusi na 130 - 140 stupnjeva moze bez problema busiti sve od betonskog zeljeza do rosfraja ali i tu bi hladjenje bilo jako jako pozeljno.

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Ako su neki zivoti savrsena kruznica, drugi uzimaju oblik koji ne mozemo predvidjeti ni shvatiti. Gubitak je bio dio moga putovanja. No i pokazao mi je sto vrijedi.
Kao i ljubav na kojoj mogu jedino biti zahvalan.

mislio je na HSS-Co

Steels

Soft low carbon steel bits are inexpensive, but do not hold an edge well and require frequent sharpening. They are used only for drilling wood; even working with hardwoods rather than softwoods can noticeably shorten their lifespan.

Bits made from high carbon steel are more durable than low-carbon steel bits due to the properties conferred by hardening and tempering the material. If they are overheated (e.g., by frictional heating while drilling) they lose their temper, resulting in a soft cutting edge. These bits can be used on wood or metal.

High speed steel (HSS) is a form of tool steel; HSS bits are hard, and much more resistant to heat than high carbon steel. They can be used to drill metal, hardwood, and most other materials at greater cutting speeds than carbon steel bits, and have largely replaced carbon steels.

Cobalt steel alloys are variations on high speed steel which contain more cobalt. They hold their hardness at much higher temperatures, and are used to drill stainless steel and other hard materials. The main disadvantage of cobalt steels is that they are more brittle than standard HSS.


inace ako si busio na ruku nije ni cudo da je puko borer ..treba sve biti dobro fiksirano i malo loja stavi da ne "zagrize"

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Ako te uhvati napadaj radinosti, mirno sjedni u ćošak i čekaj da te napadaji prođu!

Top III :Habana, Grandmaster, Grenada
I² Element18350/18650+kick, Ant-i-Mod +5V, Ergo69-Yenki69,UD Agi,IgoW

Tocno, hss-co. Nisu bas za zeljezo i busenje iz ruke, prakticki je stupna busilica za njih must-have, kao i hladjenje. Izuzetno su krta i lako pucaju. Trebaju mi hss-g svrdla...

Sent from my U8650-1 using Tapatalk 2

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Devils Marble EVO, Nautilus Oddy klon, Hercules...
ipv Mini, Kaya lite v2+ klon

Da se malo uključim- Dobri stari Vijci Kranjec imaju jako dobar izbor svrdla, nareznica, ureznica itd

http://vijci.com.hr/?page_id=10&brand=RUKO%20SVRDLA

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Devils Marble EVO, Nautilus Oddy klon, Hercules...
ipv Mini, Kaya lite v2+ klon