Great Drill Bits specializes in PDC bits development, designed sales. It is one of the biggest PDC drill bit manufacturing companies in Asia and is qualified as supplier for CNPC, Sinopec and CNOOC.

The company, with modern plants and advanced produ-ction equipment, has the capability to produce more than 10000 of the drill bits from size 3” ~ 26”.

The technological talent and the high quality product have clearly been the two most important factors. The co-mpany has build a professional team of production development, design, sales and management, the scale of professional people have been beyond 36%. Great has also employed famous experts as product development consultant and build technical service and development center platform to keep supporting production innova-tion and company technology progress.

The company has always focused on quality by advanced technology and high-efficiency management. To make sure our bits quality stable and excellent we produce as per “8S” and execute according to the ISO9001:2008 and ISO14001:2004, API Spec7-1. Now Great has established strategic corporation relationship with all the oil-fields in China, also sold products to America, Russia, Mid-east, Indonesia and so on.

To promote the national drilling industry developing and improving, Great have always been staunchly insistingon going on the specialized producing road with idea “Pursuing Innovation and changes for win-win and excell-ence”, integrating into global market and walking towards better and higher target!

Please feel free to contact me Alice Cai 0086-18752825001 alicemachine at foxmail.com

Cutting Structure

High quality tungsten carbide steel teeth with unique wear/compact resistance.

Gauge Structure

Enhancedgauge protectionwithhardfacing on the shirttail, strengthenedleg with special insert tungsten carbide.

Bearing Structure

High precision rollingbearing,hardfacedbearing surfaceand bearing roller. Cone bearing inlaid with friction reducing alloy and then silver-plated,made the rotating more stability, safety and durability.

Seal and Lubrication

The bearing seal is adapting the high quality HNBR O-ring. The best seal compression and the radial seal structure can enhance the seal performance. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.

Applications

Very soft formations with low compressive strength,such as shale/clay/ sand stone/soft limestone.etc.

We supply different size of this type of bit as clients' requirement.