core drilling bits
1.best quality for 6"~17 1/2".
3.high quality, best price
pdc drilling bits
Hejian Hengji BitManufacture Co.,Ltd
core drilling bits
Number of blade
Cutter size (mm)
Nozzle QTY Type
Junk slot area(in^2)
Weight on bit(KN)
Flow rate (lps)
Applications and features
Hard and compact formation with very high compressive strength .Formation grade covers 4 through 7. Motot or RSS application.
Six surved-bladed bit with medium parabolic profile and rear angle to drill from soft to medium hard formation.
FAQ(Frequently Asked Questions)
1. How to order the products? Answer: Send the inquiry with detail item description or with Model number. If there is no packing demand we take it as sea-way packing. If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. About lead time and shipping time? Answer : The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement. According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.
3.Can I expect a quality products? Answer : Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
Our company is located in Hejian and is specialized in manufacturing tricone bit, steel tooth bit and PDC bit. With an experienced and professional team, we have exported our products to many countries and regions all over the world, especially the Middle East, Africa, Asia, etc. Our products enjoy a good reputation among our customers. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.