| Share | Phrase |
| 26.88% | entirely [degree] throughbore |
| 21.59% | extend across throughbore |
| 13.64% | have throughbore [perform operation] |
| 11.80% | cylindrical [shape] throughbore |
| 7.64% | throughbore [location] dispose |
| 7.35% | throughbore end |
| 6.72% | throughbore [does] extend |
| 4.34% | include throughbore [perform operation] |