50mm le loloto o le HSS o'o'o vili vili fa'atasi ma le pa'i tasi
Vaega
O le 50 mm loloto o le tipi HSS core drill bit ma le pa'i tasi e iai ona foliga eseese, ma avea ai ma meafaigaluega sili ona lelei ma lelei mo le viliina o talosaga:
1. Faʻapipiʻi vave ma faigofie
2. Mea uamea maualuga-saosaoa (HSS).
3. Sa'o viliina
4. Fetuuna'i
5. Faʻaitiitia taimi malolo
6. O le tasi-kiliki au mamanu faʻamautinoaina le fetaui ma le tele o vili rigs, faʻaogaina le vili faʻaoga talafeagai mo le faʻaogaina i siosiomaga faigaluega eseese.
7. Tau-lelei
![ituaiga tipi annular](http://www.cndrills.com/uploads/annular-cutter-types.jpg)
![fa'aogaina o le tipi annular](http://www.cndrills.com/uploads/bb-plugin/cache/application-of-annular-cutter1-circle.jpg)
ATA GALUEGA FA'ATAU
![fa'agaioiga ata o le tipi fa'aanumera](http://www.cndrills.com/uploads/operation-diagram-of-annular-cutter.jpg)
Tusi lau savali iinei ma lafo mai ia i matou