Roller Bit

• Factory Price API 5 7/8" 6" 6 1/2" 6 3/4" 149mmYINHAI TECH DATA FOR TCI TRICONE BITS REAL SHOT OF YINHAI PRODUCED TCI BITS About the company-HEJIAN YINHAI ROCK BITS MFview more
• 5% off D Miningwell 295mm 12 Inch Rock Bits 7 7/8 Tricone Drill Bit Tricone Roller Bit for Well DrillingAdvantages of roller cone bits: 1. High-strength and high-toughness carbide teeth are used to improve the impact resistaview more