|
|
Hole-openers manufactured by Universal Drilling Technique LLC
Type |
Diameter, mm |
Designed for drilling formations |
Design features |
Connecting thread according to State Standard 21210-75 |
Maximum drilling thrust, kH. |
Maximum weight, kg |
Maximum length, mm |
5РШ 393,7 МС |
393,7 |
soft formations with medium streaks |
hole-opener+ 2 spare crowns |
МЗ-171 х НЗ-147 |
250 |
220+103+103 |
830 |
5РШ 393,7 СЗ |
393,7 |
medium hard abrasive |
hole-opener+ 2 spare crowns |
МЗ-171 х НЗ-147 |
250 |
220+103+103 |
830 |
5РШ 393,7 Т |
393,7 |
hard low-abrasive |
hole-opener+ 2 spare crowns |
МЗ-171 х НЗ-147 |
250 |
220+103+103 |
830 |
|