BLAST HOLE ROLLER CONE DRILL

Brand Owner (click to sort) Address Description
CENTURION Varel Mining and Industrial 1625 W. Crosby Rd., Suite 124 Carrollton TX 75006 Blast hole roller cone drill bits for rock drilling;
CENTURION TERELION 6005 COMMERCE DRIVE SUITE #320 IRVING TX 75063 Blast hole roller cone drill bits for rock drilling;
CHINOOK VAREL INTERNATIONAL IND. Suite 100 22001 Northpark Drive Kingwood TX 77339 Blast hole roller cone drill bits for rock drilling;
IMPERIUM Varel Mining and Industrial 1625 W. Crosby Rd., Suite 124 Carrollton TX 75006 Blast hole roller cone drill bits for rock drilling;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A rotary cone rock bit includes one or more hole cleaning nozzles and one or more bit cleaning nozzles. The hole cleaning nozzles of one drill bit define a projected fluid path disposed at a lateral angle of less than six degrees in order to achieve a large impingement pressure on the hole bottom. The bit cleaning nozzles of the same drill bit define a projected fluid path disposed at a lateral angle of at least six degrees in order to pass within 0.5 inches of the teeth on leading edge of the lagging roller cone. This results in a drill bit that both cleans the bottom hole and cleans cone inserts.