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Showing content with the highest reputation on 08/11/2017 in all areas

  1. 1 point
    Robert Thomasson

    New Rock Drill Design

    Sorry about the dead link. As I recall the drill was a Rube Goldberg type of contraption. The operator turned a crank and a series of hammers on a rotating wheel hammered away on the drill steel. The New Rock Drill Design thread title is sort of a joke.
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