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8 1/2″M722 DIAMOND CORE BIT

Category:

Core and combined bit

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Product details

Nomenclature of RUlSHI Core and combined bit Model

S 19 5 5 X
S:
Steel Body PDC Bit
M:
Matrix Body PDC Bit
Cutter Size
19:
diameter 19mm
16:
diameter 16mm
13:
diameter 13mm
Blade Count 
3、4、5、6... 
Formation
from soft to hard
1-7
Design Characters
J/A J Series
X Sprial Gauge
C Sidetracking Bit
Q Core Bit
B Bi-center Bit
F Row Cutters
G Advanced Cutters

 

BITS SPECIFICATIONS

Size 8 1/2"
Number of blade -
Primary Cutter Size(mm) 6pcs/CT
TFA(in2 0.2-1.5
Gauge Length 1.5"
Connection

CHUAN8-3CBS
CHUAN8-4CBS

 

RECOMMENDED PARAMETERS

Rotary Speed(rpm) 40-80
Weight On Bit(KN) 20-100
Flow Rate(lps) 10-25

 

Trait:Design of short parabola outer cone、 core

 

Suitable for coring in medium-hard to hard formations with abrasiveness

   Limestone、dolomite、sandstone…

 

Design of short parabola outer cone crown

   High-density diamond particle tooth distribution
   
Increase the attack ability、coring rate、life of the bit

 

Inner and outer diameter of natural diamond

   Increase the wear resistance and stability of the gauge

 

The water channel optimization design

   Fully clean and cool the bit

 

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To: Hebei Ruishi Bits Manufacturing Co.,Ltd

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