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Changsha Drilling Machinery CO., LTD

City:changsha

Province/State:hunan

Country/Region:china

Contact Person:MrPerry

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NQ High Quality Synthetic Wireline Surface-Set Diamond Bit - 5 step

Name: NQ High Quality Synthetic Wireline SurfaceSet Diamond Bit 5 step
Brand: Drilling King
Price: 1 USD

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Place of Origin :China

Brand Name :Drilling King

Model Number :AQ, BQ, NQ, HQ, PQ

Certification :ISO, SGS

Price :Negotiated

Packaging Details :Carton

Delivery Time :One week

Payment Terms :T/T

Supply Ability :2000pcs per month

MOQ :1

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NQ Surface-Set Diamond Bit - 5 step

The surface set diamond bit is produced from a single layer of natural diamond setting on the surface of bit crown with hard matrix.
Surface set diamond bit is mainly recommended for drilling soft to hard formations. Generally speaking, surface set diamond bit can provide satisfying penetration rate.

In order to confirm the surface-set bit quality, we have to confirm the following information:

Diamond sizes (spc – stones per carat)

As a general rule; the softer formation, the larger the diamonds used i.e. 20 to 25 spc. In hard formation, smaller diamonds 30 to 50 spc are typical

Diamond Size	Formation Drilled
10/20 SPC	Soft formation
20/30 SPC	Soft to medium formation
30/40 SPC	Medium formation
40/60 SPC	Medium to hard formation
60/80 SPC	Very hard formation

Diamond quality

The standard range of natural diamonds for surface set bits is chosen in a special allround grade with special quality. The quality includes selected and processed diamonds with a highly polished surface. These stones have a high impact resistance and may be considered as an universal type. Recommended for soft to medium hard formations.

Diamond Grade	Formation Drilled
A Grade	Soft formation
AA Grade	Sort to medium formation
AA Grade	Hard to very hard formation

Diamond size range (SPC)	Actual number of stone per carat	Diamond size
Diamond size range (SPC)	Actual number of stone per carat	inch	mm
6~8	6~8	0.098	2.49
10	9~12	0.085	2.16
15	13~20	0.071	1.80
25	21~35	0.063	1.56
50	36~60	0.054	1.37
75	61~90	0.044	1.12

A series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
AQ	1.880~1.870	47.75~47.50	1.607~1.057	27.10~26.85
AQ-RSG	1.895~1.885	48.13~47.88	1.067~1.057	27.10~26.85
AWG/AX	1.880~1.870	47.75~47.50	1.190~1.180	30.23~29.97
AWM	1.880~1.870	47.75~47.50	1.190~1.180	30.23~29.97
AWT	1.880~1.870	47.75~47.50	1.286~1.276	32.66~32.41
LTK48	1.880~1.870	47.75~47.50	1.394~1.384	35.40~35.15

B series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
BQ	2.350~2.340	56.69~59.44	1.438~1.428	36.52~36.27
BQ-RSG	2.365~2.355	60.07~59.82	1.438~1.428	36.52~36.27
BQ-2.400	2.045~2.395	61.09~60.83	1.438~1.428	36.52~36.27
BQ3	2.350~2.340	26.69~59.44	1.325~1.315	33.65~33.40
BWG/BX	2.350~2.340	26.69~59.44	1.660~1.650	42.16~41.91
BWM	2.350~2.340	26.69~59.44	1.660~1.650	42.16~41.91
BWT	2.350~2.340	26.69~59.44	1.755~1.745	44.58~44.32
LTK60	2.350~2.340	26.69~59.44	1.742~1.732	44.25~44.00
TBW	2.350~2.340	26.69~59.44	1.785~1.775	45.34~45.09

N series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
NQ	2.970~2.960	75.44~75.19	1.880~1.870	47.75~47.50
NQ-RSG	2.985~2.975	75.82~75.57	1.880~1.870	47.75~47.50
NQ3.032	3.037~3.027	77.14~76.89	1.880~1.870	47.75~47.50
NQ2	2.970~2.960	75.44~75.19	2.000~1.990	50.80~50.55
NQ2-RSG	2.985~2.975	75.82~75.57	2.000~1.990	50.80~50.55
NQ3/NQTT	2.970~2.960	75.44~75.19	1.780~1.770	45.21~44.96
NQ3-RSG	2.985~2.975	75.82~75.57	1.780~1.770	45.21~44.96
NQ3-3.032	3.037~3.027	77.14~76.89	1.780~1.770	45.21~44.96
NMLC	2.970~2.960	75.44~75.19	2.052~2.042	52.12~51.87
NWG/NX	2.970~2.960	75.44~75.19	2.160~2.150	54.86~54.61
NWM	2.970~2.960	75.44~75.19	2.160~2.150	54.86~54.61
NWT	2.970~2.960	75.44~75.19	2.318~2.308	58.87~58.62
TNW	2.970~2.960	75.44~75.19	2.394~2.384	60.80~60.55

H series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
HQ	3.770~3.755	95.76~95.38	2.505~2.495	63.63~63.38
HQ-RSG	3.790~3.755	96.27~98.89	2.505~2.495	63.63~63.38
HQ-3.830	3.840~3.825	97.54~97.16	2.505~2.495	63.63~63.38
HQ-3.895	3.897~3.882	98.98~98.60	2.505~2.495	63.63~63.38
HQ3/HQTT	3.770~3.755	95.76~95.38	2.411~2.401	61.24~60.99
HQ3-RSG	3.790~3.755	96.27~95.89	2.411~2.401	61.24~60.99
HQ3-3.830	3.840~3.825	97.54~97.16	2.411~2.401	61.24~60.99
HQ3-3.895	3.897~3.882	98.98~98.60	2.411~2.401	61.24~60.99
HMLC	3.897~3.882	98.98~98.60	2.505~2.495	63.63~63.38
HWF-long	3.912~3.897	99.36~98.98	3.005~2.995	76.33~76.08
HWF-short	3.897~3.882	98.98~98.60	3.005~2.995	76.33~76.08
HWG/HX	3.897~3.882	98.98~98.60	3.005~2.995	76.33~76.08
HWT	3.897~3.882	98.98~98.60	3.192~3.182	81.08~80.82

P series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
PQ	4.815~4.795	122.30~121.8	3.350~3.340	85.09~84.84
PQ3	4.815~4.795	122.30~121.8	3.275~3.265	83.18~82.93
PWF-long	4.755~4.740	120.78~120.4	3.635~3.620	92.33~91.95
PWF-short	4.735~4.715	120.27~119.7	3.635~3.620	92.33~91.95

S series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
SWF-long	5.755~5.740	146.18~145.8	4.447~4.432	112.95~112.5
SWF-short	5.735~5.715	145.67~145.1	4.447~4.432	112.95~112.5

U series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
UWF-long	6.880~6.860	174.75~174.2	5.515~5.495	140.08~139.5
UWF-short	6.855~6.825	174.12~173.3	5.515~5.495	140.08~139.5

Z series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
ZWF-long	7.880~7.860	200.15~199.6	6.515~6.495	165.48~164.9
ZWF-short	7.855~7.825	199.52~198.7	6.515~6.495	165.48~164.9

T, TT, T2&TB series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
T36	1.422~1.412	36.12~35.87	0.859~0.849	21.82~21.57
TT46	1.818~1.808	46.18~45.92	1.394~1.384	35.40~35.15
T2-46	1.818~1.808	46.18~45.92	1.253~1.243	31.82~31.58
TB56	2.220	56.3	1.64	41.7
TT56	2.210~2.200	56.13~55.88	1.788~1.778	45.41~45.16
T2-56	2.210~2.200	56.13~55.88	1.647~1.637	41.83~41.58
T2-66	2.603~2.593	66.12~65.87	2.040~2.030	51.81~51.56
T2-76	2.997~2.987	76.12~75.87	2.434~2.424	61.82~61.57
T2-76 Coreline	2.997~2.987	76.12~75.87	2.288~2.278	58.12~57.87
T2-86	3.391~3.381	86.13~85.88	2.818~2.818	71.83~71.58
T2-86 Coreline	3.391~3.381	86.13~85.88	2.682~2.672	68.13~67.88
T2-101	3.981~3.971	101.12~100.87	3.300~3.290	83.82~83.57
T2-101 Coreline	3.981~3.971	101.12~100.87	3.155~3.145	80.13~79.88

T6 series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
T6-76	2.997~2.987	76.12~75.87	2.249~2.239	57.12~56.87
T6-86	3.391~3.381	86.13~85.88	2.643~2.633	67.13~66.88
T6-101	3.981~3.971	101.12~100.87	3.115~3.105	79.12~78.87
T6-116	4.575~4.560	116.20~115.82	3.667~3.657	93.14~92.89
T6-131	5.165~5.150	131.19~130.81	4.257~4.247	108.13~107.88
T6-146	5.755~5.740	479.18~145.80	4.847~4.837	123.11~122.86

T6S series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
T6S-76	3.009~2.999	76.43~76.18	1.883~1.873	47.83~47.58
T6S-86	3.403~3.393	86.43~86.18	2.277~2.267	57.83~57.58
T6S-101	3.993~3.983	101.43~101.18	2.828~2.818	71.83~71.58
T6S-116	4.586~4.571	116.48~116.10	6.379~3.369	85.83~85.58
T6S-131	5.177~5.162	131.48~131.10	3.970~3.960	100.83~100.58
T6S-146	5.767~5.752	146.48~146.10	4.560~4.550	115.83~115.58

B series:

Specification	Outside Diameter		Inside Diameter
Specification	Inches	Mm	Inches	Mm
B36	1.422~1.412	36.12~35.87	0.859~0.849	21.82~21.57
B46	1.818~1.808	46.18~45.92	1.253~1.243	32.82~31.57
B56	2.210~2.200	56.13~55.88	1.647~1.637	41.83~41.58
B66	2.603~2.593	66.12~65.87	2.040~2.030	51.81~51.56
B76	2.997~2.987	76.12~75.87	2.434~2.424	61.82~61.57
B86	3.391~3.381	86.13~85.88	2.828~2.818	71.83~71.58
B101	3.981~3.971	101.12~100.87	3.418~3.408	86.86~86.57
B116	4.575~4.460	116.20~115.82	4.009~3.999	101.83~101.58
B131	5.165~5.150	131.19~130.81	4.599~4.589	116.82~116.57
B146	5.755~5.740	146.18~145.80	5.190~5.180	131.82~131.57

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