drill bit for rock

1.Structure features 1) with high precision bearings with neck to slide, two way thrust bearing; Tooth palm bearing surface surfacing hard alloy and cone bearing with reduced after welding together gold silver, ... Read More

12 1/4 IADC127 steel drill bit with rubber bearing for water well drilling 1.About The Tricone Bit 1) High-strength,high flexibility,high temperature,high wear resistance. 2) High-precision metal seal. 3) ... Read More

China High Efficiency Best Price of the Tricone Bit for oil drilling with API certification Company profile Hebei guangtong Manufacturing Co is a professional manufacturer engaged in the research, development, ... Read More

API 9 1/2 TCI tipped tricone bit for mining of high quality company profile Since founding the company, always adhere to market-oriented, innovation as a starting point, to provide customers with better and ... Read More

Good Used Oil Well Roller Core Drill Bit Manufacturer for water well drilling Product information The strength and wear resistance of inserts are improve by using carbide inserts with high strength and high ... Read More

API 8 1/2 " IADC 527 High Effciency Tricone bit for drilling oil wells with cheaper price Company profile Hebei guangtong Manufacturing Co is a professional manufacturer engaged in the research, development, ... Read More

High efficiency TCI tricone bits for mining that customer approved Product information TCI tricone bits for Mining and Rock Drilling The strength and wear resistance of inserts are improve by using carbide ... Read More

Oil Well Drilling Bits 1)TCI tricone bits for Mining and Rock Drilling The strength and wear resistance of inserts are improveby using carbide inserts with high strengthand high wear resistance. Surface of ... Read More

API China High Efficiency Best Price of the Tricone Bit for oil drilling Product introduction best price of the tricone bit TCI tricone bits for Oil Drilling Inserted tricon bits 1. This series tricone bit use ... Read More

hole opener drill bit 1.Hole openers are designed for the enlargement of pilot holes and large hole applications.They are also used for road and river crossing application. 2.The hole openers are manufactured ... Read More