75mm OD NQ Core Bit For Granite , Hollow Core Diamond Drill Bits Standard Sizes
Brand Name:ShiFeng
Model Number:NQ
Minimum Order Quantity:10 Piece/Pieces
Delivery Time:15 work days
Payment Terms:T/T, Western Union
Place of Origin:WUXI
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Location:
Wuxi Jiangsu China
Address:
No. 3 Xishi Road, Shitangwan, Huishan District, Wuxi City,Jiangsu Province
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75mm OD NQ Core Bit For Granite , Hollow Core Diamond Drill Bits Standard Sizes
Description
Impregnated Diamond Core Bit
Impregnated Diamond Core Bit is made from high-quality synthetic
diamond and metal powder which could be used in various types of
strata. The best effect is achieved through the flexible design
according to the different strata and parameters of drilling
equipment.
Surface Set Diamond Core Bit
Surface Set Diamond Bit is produced from a single layer of natural
diamond setting on the surface of bit crown with hard matrix, and
primarily recommended for drilling relatively soft, abrasive,
unconsolidated formations that are not effectively drilled by
impregnated diamond bit. It is also recommended for drilling harder
formations, which 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 to the greater degree
of exposure of the individual diamond crystals.
| Bit type | Description | Set type of Diamond | Remarks |
| Wire-line | dia. 56, 59, 75 and 95, BQ, NQ, HQ | Impregnated | |
| Couple tube | dia.56, 59, 75, 76, 91, 110, 130 and 150 | Impregnated | |
| Single tube | dia.46,56, 59,75, 91, 110, 130, 150, 171, 223 and 300 | Impregnated |
75mm OD NQ Core Bit For Granite , Hollow Core Diamond Drill Bits Standard Sizes
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