8 1 2inch Tricone Bit Cutter Tricone Palm
8 1/2inch tricone bit cutter/tricone palm is_customized: Yes Brand Name: chuanzuan Material: Cobalt Steel Alloys Use: Well Drilling DIY Supplies: Plumbing Model Number: 517 Type: Center Drill Bit Model: TCI Tricone drill bit Available size: 8 1/2inch Material: 15CrNi4Mo WOB(KN/MM): 0.70~1.20 RPM(r/min): 70~40 Advantage: Most favorable price and best quality Bearing type: Sealed and non-sealed bearing Formation: Hard formation Model TCI Tricone drill bit IADC Code ...