

Add to Cart
High Speed China Impregnated Wireline Diamond Core Drill Bits NMLC
/ HMLC Core Bits
Size: NMLC wireline imp diamond core drilling bit
Outside Diameter: 2.965" / 75.31mm
Inside Diameter: 2.047" / 52mm
Application: Geological mine exploration such as gold mine, iron
ore, copper mine
NMLC / HMLC core bit
This type of bit is primarily recommended for use in drilling
relatively soft, abrasive, unconsolidated formations that are not
effectively drilled by impregnated diamond bit. It is also
recommended for use in drilling harder formations where the
available rotary speeds and bit loads are insufficient to use
impregnated diamond bits due to drilling equipment limitations.
In most cases, surface set diamond bits will provide higher rates
of penetration than in softer formations due largely to the greater
degree of exposure of the individual diamond crystals.
Use :
NMLC surface set diamond core bits are widely used for the site
investigation and mineral exploration.
NMLC Surface set diamond core bits can be used with NMLC core
barrels.
NMLC surface set diamond core bits are primarily recommended for
use in drilling relatively soft, abrasive, unconsolidated
formations.
In most cases, Surface-set diamond core bits will provide higher
rates of penetration than in softer formations due largely to the
greater degree of exposure of the individual diamond crystals.
Drill soft to hard rock, widely used in all kinds of drillings for
prospecting, water and electricity building and construction
industry of road, railway, bridge and building taking out core to
examine stake, etc
Any items you are interested in, please feel free to contact us. We
are very interested in cooperating with your company to develop and
to promote our products in your country.
Features
1: the impregnated diamond core bits features drilling speed and
long service life
2: the design of more cutting edges makes drilling progress
smoother
3: during the manufacturing process, the diamond is free erosion
and fully utilized
4: the impregnated diamond core drill bits are of various
configurations and meet various needs of local conditions
5: it offers the most widely-used bit matrices as well
6: with various specifications, our series matrix range provide an
easy selection and reliable foundation for your drilling needs
Size | Outside dia. inch | Outside dia. mm | Inside dia. inch | Inside dia. 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 |
Size | Outside dia. inch | Outside dia. mm | Inside dia. inch | Inside dia. 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 |