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Help CenterHollow Core Diamond Drill Bits 75 MM Core Drill Bit Impregnated Casing
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Certification:ISO API
Hollow Core Diamond Drill Bits 75 MM Core Drill Bit Impregnated Casing
Description:
The impregnated diamond bits are typically used in the drilling of hard earth layers (hard stratum or formations), and it is quite suitable for breaking and non-breaking of 5-10-level stratum and a variety of abrasive formations.
It mainly consists of diamond, steel body, carbide powder and polycrystalline diamond. The polycrystalline diamond is utilized to avoid too much abrasion of drill bits. The impregnated diamond is synthetic diamond (also called artificial diamond), which costs less but is more suitable to be used in drilling hard formations.
As to the packing, it is first packaged by cartons, and then put into the plywood case.
Specification:
International Standard:
Q series: AQ, BQ, BQ3,NQ, NQ2, NQ3,HQ, HQ3,PQ, PQ3
T series:T36,TB56
TT series:TT46,TT56
T2 series: T2 46,T2 56,T2 66,T2 76,T2 86,T2 101
T6 series:T6 76,T6 86,T6 101,T6 116,T6 131,T6 146
B series:B36,B46,,B56,B66,B76,B86,B101,B116,B131,B146
MLC series:NMLC,HMLC
LTK series:LTK48,LTK60
Standard of China:
Single tube series: D36, D46, D48, D56, D59, D60, D66, D75, D76, D77, D78, D91, D92, D93, D94, D95, D96, D98, D100, D110, D112, D130, D132,D152, D171, D173, D225, D245, D279, D325
Double tube series: P36, P46, P48, P56, P59, P60, P66, of P75, P76, P77, P91, P94, P110, P130, P150,P152,P202,P219
Rope series: S56, S59, S60, S75, S76, S77, S78, S91, S95, S96, S98 ,S122
Non-standard also can be made as your requirement.
Application
Our impregnated bits matrices can be selected according to the chart below
|
Series Number |
Name of Rock |
| 1 | sand, soft shale, chalk, marly shale, med-hard limestone ,salt,frozen soil&ice,soft sandstone,sandy shale,claystone,sandy limestone,soft schist |
| 2-3 | soft shale,chalk,marly shale,med-hard limestone,salt,frozen soil&ice,soft sandstone,sandy shale,claystone,sandy limestone,soft schist,med-hard sandstone,siltstone,alluvial deposits,calcitic limestone |
| 4-5 | claystone,sandy limestone,soft schist,med-hard sandstone,siltstone,alluvial deposits,calcitic limestone,med-hard limestone,hard limestone,hard shale,dolomitic limestone |
| 6-7 | med-hard limestone,hard limestone,hard shale,dolomitic limestone,schist,serpentine,hard & mica schist,siliceous limestone,dolomite,marble,peridotite |
| 7-8 | dolomitic limestone,schist,serpentine,hard & mica schist,siliceous limestone,dolomite,marble,peridotite,andesite,pegmatite,hematite |
| 8 | dolomite,marble,peridotite,andesite,pegmatite,hematite,magnetit,metamorph schist,gneiss,granite,basalt |
| 9-10 | andesite,pegmatite,hematite,magnetit,metamorph schist,gneiss,granite,basalt,gabbro,rhyolite,diorite |
| 10-11 | magnetit,metamorphschist,gneiss,granite,basalt,gabbro,rhyolite,diorite,conglomerate,taconit |
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