Great Rock Reamer Hole Opener

This type of Bi-center bit mainly used for medium to medium hard compressive and abrasive formation.

Steel tooth drills are suitable for extremely soft formations with low compressive strength and high drillability such as clay, mudstone, chalk, etc..

Overview 120 ° U-shaped Roller bitGREAT has customized manufacture several types of roller bit . The traditional roller bit was cut by tricone bit . So it is including No.1 ,No.2, No.3 Cone cutters ....

This is a 7 blade Matrix body PDC bit , with Stinger cutters back row, used for very abrasive formation.