Back holes

Revision as of 13:41, 23 June 2021 by Webref (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigationJump to search Buy 1 Get 1 Free Frontline Top Spot

In shaft sinking, raising, or drifting, the holes that are shot last.

Source: Dictionary of Mining, Mineral, and Related Terms

Sponsor: 25% Off Selected Polo Shirts