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Tangshan Jinshi head assembly features long life span, good compatibility with parts like inner tube and outer tube from other vendors, and availability in all spare parts.


| Double tube surface | ||||
| Size(surface exploration drill) | Metric system(mm) | Imperial system(in) | ||
| Hole diameter | Core diameter | Hole diameter | Core diameter | |
| BQ | 60 | 36.4 | 2.36 | 1.43 |
| NQ | 75.7 | 47.6 | 2.98 | 1.88 |
| HQ | 96.1 | 63.5 | 3.78 | 2.5 |
| PQ | 122.7 | 85 | 4.83 | 3.34 |
| Triple tube surface | ||||
| NQ3 | 75.7 | 45 | 2.98 | 1.78 |
| HQ3 | 96.1 | 61.1 | 3.78 | 2.41 |
| PQ3 | 122.7 | 83 | 4.83 | 3.27 |


Jinshi DrillTech Co., Ltd. (Former Tangshan Jinshi Superhard Material Co., Ltd.) was founded in 1996, with a registered capital of 53 million CNY. JINSHI specializes in the development, production and sales of exploration drilling tools as well as providing drilling solutions and services.
JINSHI plant covers an area of 51,800 square meters. with over 360 employees and world-class intelligent production line of diamond core drilling consumables, JINSHI possesses core technology of diamond tools and industry-leading knowledge of deep-hole drilling tools.
For past 24 years, JINSHI is devoted to serving geological core drilling industry is committed to becoming a world-class brand!
welcome to visit us in any time!










Jinshi will response in 8 hours to the problems caused by our products. When necessity arises inside the country, technical support will arrive in 24 hours within a 1000 kilometers radius of the company, will arrive in 48 hours for other parts of China. Due to the limitation of branch offices in foreign countries, technical support will arrive your work site in 15 days after visa is issued.
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