Specifications

core bit
1.best quality for 6"~17 1/2".
2.ISO&API
3.high quality, best price

pdc drilling bits

 

Hejian Hengji Bit Manufacture Co.,Ltd
Product specification
Product name	core drilling bits
Size	ø215*ø105
Number of blade
Cutter size (mm)	13MM
Nozzle QTY Type	5NZ
Gauge length	2.5"
Junk slot area(in^2)	13.2
connection	4-1/2”API Reg
Operating parameters
Rotary speed(rpm)	60-260
Weight on bit(KN)	25-110
Max wob(KN)	110
Flow rate (lps)	25-35
Applications and features
applications	Hard and compact formation with very high compressive strength .Formation grade covers 4 through 7. Motot or RSS application.
Features	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.