Wholesale 18 Inches HDD trenchless ,no-Dig PDC hole opener in the stock from China factory. With superior PDC cutters, the PDC hole opener is new favourite in No-Dig drilling field, one PDC hole opener may have 3-9 blades according to hardness of rocks, mainly cutter diameters are 13mm, 16mm, 19mm. All the blades are machined by CNC maching center, the accuracy is precise to maintain the original design as cutter angles is very important for cutting performance. Advantage of PDC hole opener: 1>Longer working life. 2>Faster drilling speed. 3>No risk of dropping cones.Application: Hard formations for high compressive strength,such as sandstone,hard shale,dolomite,hard gypsum,chert, granite, etc. Far Eastern are  factory  specializes in drill bits,such as HDD hole opener,Foundation roller cutters ,PDC drill bit,roller cone bit, tricone roller cone bit, tricone bits 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 !