Diamond drills are used especially in hard formations to advance faster and reduce the number of maneuvers. As the number of maneuvers is reduced, the drilling time is shortened and the total cost per meter is reduced.

These drills are especially useful in hard, abrasive rocks, loose, cracked and chalky flints where the hardness of the rock changes abruptly. NQ DIAMOND DRILL. HQ DIAMOND DRILL. NQ HQ DIAMOND DRILL. NQ DRILL. HQ DRILL.