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Impregnated Diamond Core Bits

impregnated diamond core bit

The main crown technical paramenters of impregnated diamond core bits include diamond grade,size,concentraion and quality,matrix hardness and crown shapes.The users can make rational selections accroding to the formations to be drilled.

To aviod excessive bit wear,tungsten carbide inserts are used on both sides of  the waterways,and gage stones are a bit larger.

Sizes of Core Bits and Reaming Shells:

Description 钻头
Core bit
钻头
Core bit
金刚石扩孔器
Reaming shell
规格型号 外径
Outside Diameter
内径
Inside Diameter
外径
Outside Diameter
Model 英寸
Inches
毫米
mm
英寸
Inches
毫米
mm
英寸
Inches
毫米
mm
BTW 2.345 59.56 1.667 42.1 2.36 59.95
NTW 2.965 75.31 2.218 56.1 2.98 75.7
HTW 3.762 95.57 2.809 71.1 3.783 96.09
AQ 1.875 47.63 1.062 26.97 1.89 48.01
BQ 2.345 59.56 1.433 36.4 2.36 59.95
BQ3 2.345 59.56 1.32 33.53 2.36 59.95
NQ 2.965 75.31 1.875 47.63 2.98 75.7
NQ3 2.965 75.31 1.775 45.08 2.98 75.7
HQ 3.762 95.57 2.5 63.5 3.783 96.09
HQ3 3.762 95.57 2.406 61.11 3.783 96.09
PQ 4.805 122.05 3.345 84.96 4.828 122.65
PQ3 4.805 122.05 3.27 83.06 4.828 122.65
T2-56 2.205 56 1.642 41.7 2.224 56.5
T2-76 2.992 76 2.429 61.7 3.019 76.5
T2-86 3.385 86 2.823 71.7 3.406 86.5
T2-101 3.976 101 3.295 83.7 3.996 101.5
T6-101 3.976 101 3.11 79 3.996 101.5
T6-131 5.157 131 4.252 108 5.157 131.5

Post time: Feb-02-2021