Straight Wireline Diamond Tipped Masonry Bits 85 Core Inside Diameter
We specialized in manufacturing Drill Rods, Casings, Core barrels, Diamond bits, Reaming shells, Drill rigs, PDC bits and other drilling tools & equipment for geological exploration, mining, geotechnical, dam grouting, water well and horizontal directional drilling.
Quality guarantee is not only responsible for customers, but also the assurance of enterprise's steady development. The necessary test equipment and the effective & perfect production process control is the assurance of product quality. Taking the spirit of "To win the market with innovation, to serve the customers with friendship, to build the brand with quality, to develop the enterprise with sincerity", we utilize the advanced testing methods to make each product meticulously.
| 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 |
|
Impregnated Diamond Core Bit is made with high quality synthetic diamonds, mixed evenly through a metal alloy matrix. Using hierarchical mole technology, to reduce the contact area of diamond bit matrix and the labial surface of the rock surface, and improve the drilling speed. The diamond bit mole with steel layer, to increase the pressure applied to the rock drill lip, improve the drilling speed of the drill bit. Put the first-grade abrasive-high strength, coarse grain diamond and two grade abrasives -low strength, fine grain diamond in the diamond bit, to improve the life of diamond bit.
|
Size
|
NQ3
|
Design
|
DCDMA
|
|
Outer diameter MAX (mm)
|
75.44
|
Outer diameter MAX (in)
|
2.970
|
|
Outer diameter MIN (mm)
|
75.19
|
Outer diameter MIN (in)
|
2.960
|
|
Inner diameter MAX (mm)
|
45.21
|
Inner diameter MAX (in)
|
1.780
|
|
Inner diameter MIN (mm)
|
44.96
|
Inner diameter MIN (in)
|
1.770
|
|
Hole diameter (mm)
|
75.6
|
Hole diameter (in)
|
2.98
|
|
Core diameter (mm)
|
45.1
|
Core diameter (in)
|
1.77
|
|
Hole area (cm2)
|
45.0
|
Hole area (in2)
|
6.96
|
|
Core area (cm2)
|
15.9
|
Core area (in2)
|
2.47
|
