Wholesale 10"PDC hole opener in the stock from China factory Sizes range: 8" to 42 " and customized according to drawings or requirements. Pilot size:5 1/2”,6 1/2”,8 1/2”,12 1/4” etc. Blade number:5~12 PDC cutter size:13/16/19mm Thread type:REG/IF/FH/Pulling eye etc. 1.Use high quality steel to make the base material of PDC hole opener. 2.The surface of the blade weld high-performance wear-resistant material 3.Double row of teeth, long parabolic crown, longstraight blades shape structure. 4.Using high-quality cutting teeth, improve the resistance and PDC bit attack abrasive.Far Eastern are  factory  specializes in drill bits,such as roller cone bit, tricone roller cone bit, tricone bits,HDD hole opener,Foundation roller cutters for different applications. The application including oil field,natural gas,geological exploration,driectional boring,mining ,water well drilling ,HDD, construction,and foundation. As a leading drill bits factory in China,increase the drill bit working life is our target. We always try to improve the bits with high penetration rates.Our purpose is to sell the high quality with the lowest price.Far eastern drilling quality and technology will help you to achieve more !