La'au maina koale
O le to'oto'o fa'ata'ali'i fa'ailo fa'asao e maualuga lona fa'atinoga, lea e fa'aogaina i lau fa'a sikulima tasi po'o le lau fa'alua.E fa'aaogaina uamea fa'apitonu'u fa'apitoa ma auala fa'afefete fa'afefe.
| Leai, | Diamita | ta'amilosagalautele | Uamea | Torque | loloto | Fa'amea fa'afetaui | Bit diameter | Soofaatasimaaa |
| 1 | e 34mm | 50-80mm | Dz5o | 200on/m | 100m | zDY-400,540.650,1200 | 65-113mm | HRC28-32 |
| 2 | c 42mm | 50-10omm | DZ50 | 3000n/m | 100m | 65-146mm | HRC28-32 | |
| 3 | c 5omm | 73-150mm | DZ50 | 5000n/m | 100m | 94-200mm | HRC28-32 | |
| 4 | c 60mm | 73-170mm | R780 | 7000n/m | 150m | zDY-1500, 1900,400o,6o0o | 94-250mm | HRC28-32 |
| 5 | c 63.5mm | 73-20mm | R780 | 8000n/m | 200m | 94-250mm | HRC28-32 | |
| 6 | c 73mm | 89-25omm | R78o | 10000n/m | 200m | 108-30omm | HRC28-32 | |
| 7 | c 89mm | 100-300mm | R780 | 12000n/m | 300m | 108-350mm | HRC28-32 |
O paipa vili koale ose meafaigaluega fa'aoga mo le fa'aaogaina o mea'ai, o se paipa vili fa'apipi'i fa'aoga maualuga e fa'aogaina i vili viliina auger vili koale, e masani lava ona faia i le uamea sili ona lelei, talafeagai mo le fa'aogaina i le viliina o le koale eletise.
E lua ituaiga o paipa vili koale: malō (paipa vili malala mago) ma omo (paipa vili malala susu).O loʻo i ai le lautele o le Φ26, Φ28, Φ30, Φ38, Φ40, ma isi. E tusa ai ma manaʻoga o le viliina ma le gaosiga, o le umi e masani lava 0.5- 6M., O le ituaiga faʻatau oloa e faʻaaogaina le pine puna poʻo le faʻaogaina o filo.O paipa vili koale o lo'o fa'aogaina fa'atasi ma va'aiga pneumatic anti-outburst drilling rigs, e fa'aogaina ai le fa'aogaina o tekonolosi fa'avili, e iai uiga o le saosaoa o le vili vave, foliga lelei o le viliina, ma le maualuga o le viliina lelei.Pe a faatusatusa i le saoasaoa masani vili, e sili atu le saoasaoa.O le a'afiaga o le fausiaina o le viliina i luga o le alualu i luma o le eliina i le taimi o le su'iga o le koale e fa'aitiitia, ma e fa'aaogaina lautele i koale, gypsum mines ma isi viliina ma eli.
O le faʻaaogaina o mea faʻapitoa e faʻaleleia ai le loto i ai ma le malosi, maʻaʻa ma le ofuina o le teteʻe o le tootoo vili.
O le paipa vili koale eletise faʻamago e faia i le sila maualuga, lea na faʻapitoa faʻapitoa e faʻaleleia ai le malosi, faigata ma le faʻaogaina o le faʻaogaina o le paipa vili.Ua faaumiumi le soifua tautua ma faaleleia le manuia o le tamaoaiga.
O le ituaiga fou o vai mamago lua-faamoemoega vili paipa e faia i mea faapitoa i luga o le faavae o le koale vili paipa, lea e faaleleia atili ai le faigata, malosi, faigata ma le ofuina tetee o le paipa vili, ma faalautele ai le ola auaunaga.E 3-5 o paipa vili koale.Taimi.Fa'aaliga: mama mama, tafe vave vai, tele-pitch pa'u pa'u, maualuga le lelei, ma fa'aitiitia le malosi o tagata faigaluega.(Pitch ma fesoʻotaʻiga auala e mafai ona faʻapitoa e tusa ai ma manaʻoga o tagata faʻaoga)
