11 1 4 tci button drill bit

Brand Name:ENG

Model Number:1114

Place of Origin:China

... characters are always numeric; the last character is always alphabetic. The first digit refers to bit series, the second to bit type, the third to bearings and gauge arrangement, and the fourth (alphabetic) character to bit features. Series Series, the

Brand Name:Tianying

Model Number:IADC 735

Place of Origin:CHINA

TCI tricone bit 12 1/4'' IADC 735 rock drill bit TCI rock roller bits for hard & abrasive formation IADC code: 735 Bearing type: Roller-ball-roller-thrust button/sealed bearing Circulation type: Jet air Cutting structure: Tungsten carbide inserts Pin connection: 6-5/8'' API REG Metric bit diameter: 311mm Product weight: 98kg Weight on bits: 5,880-11...