PQ Diamond Core Bit

Product Description

As a professional manufacturer of impregnated diamond core bits in China, Zhongjin provides impregnated diamond core drill bits, PDC drill bits, carbide drill bits, etc. for global customers, all of which have passed ISO9001:2000 and API 5DP certification.

With the help of our team of skilled professionals, we are committed to providing the highest quality PQ diamond core bits. The products offered are manufactured with high-quality raw materials and cutting-edge technologies that meet international standards to ensure high quality.

Due to its high durability, dimensional accuracy, optimum strength and robust design, this PQ diamond core bit is in high demand in the market. In addition, we offer various sizes of diamond core bits at affordable prices.

Size of HQ Diamond Core Bits

Outside Diameter		Inside Diameter
inch	mm	inch	mm
4.805	122.05	3.345	84.96

Please choose the Matrix(crown) hardness of the bits from the form below and let us know it by order remark or message center. Thanks in advance!

Main Features
* Significantly outperforms the successful series range in drilling speed and bit life.
* Protects the diamond from oxidation and surface degradation.
* Inhibits the premature "pull-out" of the diamond.
* Available in multiple standard configurations and selected on the basis of relative rock hardness and ground conditions.

Size of Diamond Core Bits and Reaming Shells

Model	Outside Diameter of Core Bit		Inside Diameter of Core Bit		Outside Diameter of Reaming shell
	Inches	mm	Inches	mm	Inches	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

Select Reference Table of Diamond Core Bits

Diamond Core Bits Crown Shapes

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