Durable Ntw75/56 Core Drilling Tools for Tough Rock

Product Description

NQ HQ  PQ NTW BQ Impregnated core drill bits for coal mine drilling for soft / medium / hard rock

Features:
* Better performance, longer woking life, smooth drilling surface.
* Difference HRC for soft/medium/hard rock






 

Parameter of Q series core bits
Item	Outer size (mm)	Inner size (mm)	Expander (mm)
BQ	59.5	36.5	60
NQ	75	47.5	75.5
HQ	95.6	63.5	96
PQ	122	85	122.6

Geological diamond core drill bit is used for geological drilling, survey of the foundation works of buildings, investigating geological state of the dam, drilling hole and sample of special projects.

All kinds of core drill bits for geological prospecting, geological engineering, petroleum engineering. Dimension can be produced according to your request.

All these mining and geological diamond drill bits can meet every demand from our customers, and are suitable for drilling in medium hard, hard and very hard formation. Also, any type of mining and geological diamond drill bits can be specially designed and manufactured according to customers' requirements. Reaming shell and bit can form a complete set and use while need.

Company Information:

WUHAN WAN BANG LASER DIAMOND TOOLS CO.,LTD, a  dynamic company, driven by a team of experienced Doctor and Master specialized in powder metallurgy and laser welding technology, was established in 1999.
As a leading manufacture in professional diamond tools,Wan bang specialized in producing and developing all kinds of diamond tools, which have wide range of applications in architecture, stone process, decoration and highway project, etc.
As a ISO9001: 2000 certified company, Wan bang has very strict quality control system, all products exported to the U. S. A., Germany, UK and many other countries, and enjoy very good reputations in the mainstream market.
Our products including:
Laser welded diamond concrete saw blades, asphalt saw blades, granite cutting disc, refractory brick diamond blade, diamond core drill bits, diamond grinding cup wheels and grinding shoes, diamond wall saw blades, floor saw blades, ring saw, wire saw, tuck point blades, diamond segments, vacuum brazed saw blades, vacuum brazed core drills, sintered saw blades for ceramic/glass/tiles/marble, electroplated cutting disc for glass.