product name 3. 8.5x4GNC623 Natural Diamond Core Bit
Product specification
PCutter size (mm) 6PCS/CT
TFA(in^2) 0.89
Gauge length 1.5-0.75"
connection 6.75"×4"CBS
Operating parameters
Rotary speed(rpm) 40-80
Weight on bit(KN) 20-100
Max wob(KN) 100
Flow rate (lps) 10-30
applications
Application Formation: Hard and compact formation with very high compressive strength and some abrasive layer.Rock type: Calcareous shale.sandstone.
Features
Double core parabolic profile and heavy natural diamonds placement are designed for coring in the hard and abrasive formations.High grade and suitable size natural diamonds improve increase bit's ROP and duration.
3. 8.5x4GNC623 Natural Diamond Core Bit