Great Rock Reamer Hole Opener

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

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

Overview Starry Sky Roller BitGREAT has customized manufacture 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.The Roller bit mainly used for Rock reamer (Hole opener) ...

GREAT customized made Diamond core bits ,which including Matrix body and Steel body.