HSS Asme Extra Long Drill Bit
Boholo ba Sehlahisoa
D D L2 L1 | D D L2 L1 | D D L2 L1 | |||||||||||||||||||
1/4 | 2500 | 9/13 | 12/18 | 7/16 | 4375 | 9/13 | 12/18 | 5/8 | .6250 | 9/13 | 12/18 | ||||||||||
5/16 | .3125 | 9/13 | 12/18 | 1/2 | 5000 | 9/13 | 12/18 | ||||||||||||||
3/8 | 3750 | 9/13 | 12/18 | 9/16 | 5625 | 9/13 | 12/18 |
Pontšo ea Sehlahisoa
Ntle le ho eketsa lubricity, kalafo ea black oxide e boetse e etsa lipokotho tse nyane holim'a sesebelisoa tse khonang ho ts'oara pholiso haufi le moeli oa nako e telele.Ka lebaka la phekolo ea holim'a oxide e ntšo holim'a tšepe e phahameng ka potlako, sesebelisoa se matlafatsoa ka ho hanyetsa mocheso le ho atolosoa bophelong ba sesebelisoa sa eona, se nang le lesela le tšesaane la oxide ho feta leo ka tloaelo le sebelisetsoang ho khetholla lisebelisoa tsa tšepe ea cobalt;tshebetso ea eona e tšoana le ea lisebelisoa tse sa koaheloang.Hoa khoneha ho sebelisa li-shank tse pota-potileng ka mefuta e mengata e fapaneng ea lisebelisoa.
Li-drill tse nang le ntlha e arohaneng ea likhato tse 118 kapa 135 li bolela hore ho na le matla a fokolang a hlokahalang bakeng sa ho phunya ka har'a mosebetsi, ho thibela ho phunya ho tloha holim'a thepa, ho itšepa le ho fokotsa matla a hlokahalang ho phunya.Seboro sena se na le moralo o ikhethileng o nang le ntlha e ikemetseng e thibelang ho thella, ho etsa hore mosebetsi o potlake hape o be bonolo.Ho eketseha ha lebelo la ho cheka ho bolela mocheso o fokolang o hlahisoang 'me ho finyelloa ho apara ho eketsehileng, ho lelefatsa bophelo ba ho cheka.Sekhahla se lula se le bohale 'me se mamella tšebeliso e tsoelang pele.Ha o sebetsa ka tsela e fapaneng le oache (ho seha ka letsohong le letona), li-cutters tsa helical-fluted li leleka li-chips ho ea holimo ka sehiloeng ho fokotsa ho koala.