Moab Bit & Tool builds a full line of reverse circulation drag bits with Moab bolt-on teeth. There are many sizes and styles of teeth available, including the regular step type, special type, PDC cutters and claw teeth. Our steel and carbide products are made in the USA. Don’t settle for cheap imitations. Trust the original Moab bolt-on teeth that were developed by J.W. Holland in the 1960s.