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| Categories | Diamond Core Bit Set | 
|---|---|
| Brand Name: | Yaheng | 
| Certification: | ISO9001 | 
| Place of Origin: | China | 
| MOQ: | 1 | 
| Price: | usd dollar 300~450 per piece | 
| Payment Terms: | L/C, D/P, T/T, Western Union | 
| Supply Ability: | 1000 piece per month | 
| Delivery Time: | 5~8 days after payment | 
| Packaging Details: | Sea or Air standard packing | 
| Matrix Material: | Tungsten Carbide | 
| Diameter Protect: | Natural Diamond | 
| Bit Body: | Carbon Steel | 
| Design: | Face Discharged | 
| Style: | surface set | 
| application: | granite | 
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.
| Size Available: 
 | 
| 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 | 
| BQ | 2.350/2.340 | 59.69/59.44 | 1.438/1.428 | 36.52/36.27 | 
| NQ | 2.970/2.960 | 75.44/75.19 | 1.880/1.870 | 47.75/47.50 | 
| HQ | 3.770/3.755 | 95.76/95.38 | 2.505/2.495 | 63.63/63.38 | 
| PQ | 4.815/4.795 | 122.30/121.80 | 3.350/3.340 | 85.09/84.84 | 
|   | 
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