Impregnated Diamond Core Bits for Geotechnical Engineering Survey (HQ3)

• Customization: Available
• Customized: Customized
• Standard: International Standard
• Model NO.: HQ3
• Length: Jobber-length
• Type: Core Drill Bit
• Material: Diamond
• Usage: Geotechnical Engineering Survey
• Size: Hq3
• Matrix Height: 8mm-14mm
• Waterway: Standard Type
• Manufacturing Arts: Sinter
• Transport Package: Plywood Case & Carton
• Specification: DCDMA
• Trademark: Miracleland
• Origin: Changsha, Hunan, China
• HS Code: 8207191000
• Production Capacity: 10, 000PCS/Year

Product Description

Product Description

With bottom discharge diamond core bits, which is suitable for triple tube core barrels, to improve the flushing fluid's erosion against the core during drilling. 

The main crown technical parameters of impregnated diamond core bits include diamond grade,size,concentration and quality,matrix hardness and crown shapes. The users can make rational selections according to the formations to be drilled.
 
To avoid excessive bit wear,tungsten carbide inserts are used on both sides on the waterway,and gage stones are a bit larger.

The choice of the diamond bit crown shape:

W Profile
Suitable for drilling hard dense formations with high penetration rate.

Semi-Round Profile
Impregnated bits with this profile are recommended for use in highly fractured formations with good drilling stability. Surface set bits of this style have a long bit life and the matrix is not easy to be damaged.

Flat Profile
It's suitable for various rocks, often used in impregnated casing bits, casing shoes as well as the bits with very hard matrices(e.g. F1, F2).

Cross Profile
It's especially designed for ultra-hard formations, such as granite (hardness 8-9), ganister, quartzite, siliceous limestone, chert, etc.

Multi-Step Profile
Multi-Step type impregnated bit are suitable for soft to medium hard formations and alternating hard-soft formations. With very good drilling stability, it makes the borehole not liable to deflection and the penetration fast. This profile is also often adopted in thick-kerf surface set core bits, with good drilling stability and fast penetration.

Shaped Gear Profile
It's suitable for competent formations, and can expand the flushing ways and improve the penetration rate.

Face Discharge
It's suitable for sedimentary and metamorphic formations, or the formations including with lots of mineral powders, this design can protect the core from flushing and improve the getting effciency of core samples.
 
 

Related Photos

 

Size

Diamond core drill bits

A-Gauge Core Bits: AQ, AQ-RSG, AWG(AX), AWM, AWT, LTK48

B-Gauge Core Bits: BQ, BQ-RSG, BQ-2.400, BQ3, BWG(BX), BWM, BWT, LTK60, TBW

N-Gauge Core Bits: NQ, NQ-RSG, NQ-3.032, NQ2, NQ2-RSG, NQ3/NQTT, NQ3-RSG, NQ3-3.032, NMLC, NWG(NX), NWM, NWT, TNW,

H-Gauge Core Bits: HQ, HQ-RSG, HQ-3.830, HQ-3.895, HQ3/HQTT, HQ3-RSG, HQ3-3.895, HMLC, HWF-Long, HWF-Short, HWG(HX), HWT

P-Gauge Core Bits: PQ, PQ3, PWF-Long, PWF-Short

S-Gauge Core Bits: SWF-Long, SWF-Short

U-Gauge Core Bits: UWF-Long, UWF-Short

Z-Gauge Core Bits: ZWF-Long, ZWF-Short

T, TT, T2 & TB Series Metric Core Bits: T36, TT46, T2-46, TB56, TT56, T2-66, T2-76, T2-76Coreline, T2-86,

T2-86 Coreline, T2-101, T2-101 Coreline

T6 Series Metric Core Bits: T6-76, T6-86, T6-101, T6-116, T6-131, T6-146

T6S Series Metric Core Bits: T6S-76, T6S-86, T6S-101, T6S-116, T6S-131, T6S-146

B Series(IS03552-1)Metric Core Bits: B36, B46, B56, B66, B76, B86, B101, B116, B131, B146
 
 

Production Workshop

 

Packaging & Shipping

Using plywood case package for sea shipment, and using carton packages for air delivery.

Dimensions of Core Bits:
 

A-Gauge Core Bits
Size	Outside diameter		Inside diameter
	inch	mm	inch	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-Gauge Core Bits
BQ	2.350/2.340	59.69/59.44	1.438/1.428	36.52/36.27
BQ-RSG	2.365/2.355	60.77/59.82	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	59.69/59.44	1.325/1.315	33.65/33.40
BWG,BX	2.350/2.340	59.69/59.44	1.660/1.650	42.16/41.91
BWM	2.350/2.340	59.69/59.44	1.660/1.650	42.16/41.91
BWT	2.350/2.340	59.69/59.44	1.755/1.745	44.58/44.32
LTK60	2.350/2.340	59.69/59.44	1.742/1.732	44.25/44.00
TBW	2.350/2.340	59.69/59.44	1.785/1.775	45.34/45.09
N-Gauge Core Bits
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
NQ-3.032	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,NWLTT	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
LMLC	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-Gauge Core Bits
HQ	3.770/3.755	95.76/95.38	2.505/2.495	63.63/63.38
HQ-RSG	3.790/3.755	96.27/95.89	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, WLHTT	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
HWM	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	81.08/8082
P-Gauge Core Bits
PQ	4.815/4.795	122.30/121.80	3.350/3.340	85.09/84.84
PQ3	4.815/4.795	122.30/121.80	3.275/3.265	83.18/82.93
PWF-Long	4.755/4.740	120.78/120.40	3.635/3.620	92.33/91.95
PWF-Short	4.735/4.715	120.27/119.76	3.635/3.620	92.33/91.95
S-Gauge Core Bits
SWF-Long	5.755/5.740	146.18/145.80	4.447/4.432	112.95/112.57
SWF-Short	5.735/5.715	145.67/145.16	4.447/4.432	112.95/112.57
U-Gauge Core Bits
UWF-Long	6.880/6.860	174.75/174.24	5.515/5.495	140.08/139.57
UWF-Short	6.855/6.825	174.12/173.36	5.515/5.495	140.08/139.57
Z-Gauge Core Bits
ZWF-Long	7.880/7.860	200.15/199.64	6.515/6.495	165.48/164.97
ZWF-Short	7.855/7.825	199.52/198.76	6.515/6.495	165.48/164.97
T, TT, T2 & TB Series Metric Core Bits
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	31.82/31.57
TB56	2.220	56.30	1.640	41.70
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	2.828/2.818	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	3.971/3.971	101.12/100.87	3.155/3.145	80.13/79.88
T6 Series Metric Core Bits
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	146.18/145.8	4.847/4.837	123.11/122.86
T6S Series Metric Core Bits
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	3.379/3.369	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 (ISO3552-1) Metric Core Bits
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	31.82/31.57
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	86.82/86.57
B116	4.575/4.560	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