Drill rod gripping apparatus

摘要

Drill rod gripping apparatus to grip and impart rotational motion to a drill rod. A sled is axially mounted at a frame and comprises first and second jaws moveably mounted at the sled to allow a substantially linear lateral movement across the sled to and from one another. A plurality of rod engagers are mounted at each jaw with at least one of the engagers comprising an abrasive surface formed from a coating to increase the frictional force between the drill rod and the gripping apparatus.