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Diameter 70 mm T38 Tungsten Carbide Retrac Threaded Cross Drill Bits For Mining
BESTLINK
Specifications of thread cross bit
Product name | Diameter | Tip size | Thread | |
mm | inch | |||
Thread cross bit | 45mm | 1 3/4 | 7x8 | R32 |
| 50mm | 1 31/32 | R32 | |
55mm | 2 1/8 | R38/T38 | ||
60mm | 2 3/8 | R32/R38/T38 | ||
65mm | 2 1/2 | R32/R38/T38 | ||
70mm | 2 3/4 | R32/T38 | ||
80mm | 3 1/8 | R32 | ||
100mm | 3 3/4 | R32 | ||
We also supply thread button bits, taper button bits, taper chisel bits etc.
Thread button bits
Thread connection: R25, R28, R32, R38, T38, T45, T51, ST58, GT60 and ST68.
Carbide profile: Spherical, ballistic and parabolic.
Bit Faces: flat, concave, convex and drop-center, uniface.
Bits Diameters: 33mm-152mm
Bit body: standard and retrac
Extension rod / MF rod
Other names are Extension drill steel, Extension drill rod, and Extension steel, M/F rod (Speed rod), produce Hexagonal and round cross-sections. Hexagonal rods are more rigid, heavier and transfer energy more efficiently, while increasing flushing. Round rods are generally lighter than hexagonal rodsand are normally used in extension drilling applications. With the longer steel tending to be larger in diameter, conventional extension steel is characterizedby duplicate thread on each end of the steel.
Extension rods are made by hollow drill steels, different lengths are available from 600mm to 6400mm. This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. And the threads can be used for connecting couplings, shanks adapters or bits.
| No. | Specification | |
| 1 | Drill Rod Type | Male-Male Rod, Male-Female Rod |
| 2 | Thread | R22, R25, R28, R32, R35, R38, T38, T45, T51 ST58/ST68 GT60 etc. |
| 3 | Rod size | Hex 22mm, hex 25mm, hex 28mm, hex 32mm, hex 35mm, Round 32mm, Round 39mm, Round 46mm, Round 52mm, Round 60mm, Round 76mm. |
| 4 | Length | 0.4m-6m |
| 5 | Package | in wooden case or in bundles |
Specifications of thread cross bit
Product name | Diameter | Tip size | Thread | |
mm | inch | |||
Thread cross bit | 45mm | 1 3/4 | 7x8 | R32 |
| 50mm | 1 31/32 | R32 | |
55mm | 2 1/8 | R38/T38 | ||
60mm | 2 3/8 | R32/R38/T38 | ||
65mm | 2 1/2 | R32/R38/T38 | ||
70mm | 2 3/4 | R32/T38 | ||
80mm | 3 1/8 | R32 | ||
100mm | 3 3/4 | R32 | ||
We also supply thread button bits, taper button bits, taper chisel bits etc.
Thread button bits
Thread connection: R25, R28, R32, R38, T38, T45, T51, ST58, GT60 and ST68.
Carbide profile: Spherical, ballistic and parabolic.
Bit Faces: flat, concave, convex and drop-center, uniface.
Bits Diameters: 33mm-152mm
Bit body: standard and retrac
Extension rod / MF rod
Other names are Extension drill steel, Extension drill rod, and Extension steel, M/F rod (Speed rod), produce Hexagonal and round cross-sections. Hexagonal rods are more rigid, heavier and transfer energy more efficiently, while increasing flushing. Round rods are generally lighter than hexagonal rodsand are normally used in extension drilling applications. With the longer steel tending to be larger in diameter, conventional extension steel is characterizedby duplicate thread on each end of the steel.Extension rods are made by hollow drill steels, different lengths are available from 600mm to 6400mm. This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. And the threads can be used for connecting couplings, shanks adapters or bits.
| No. | Specification | |
| 1 | Drill Rod Type | Male-Male Rod, Male-Female Rod |
| 2 | Thread | R22, R25, R28, R32, R35, R38, T38, T45, T51 ST58/ST68 GT60 etc. |
| 3 | Rod size | Hex 22mm, hex 25mm, hex 28mm, hex 32mm, hex 35mm, Round 32mm, Round 39mm, Round 46mm, Round 52mm, Round 60mm, Round 76mm. |
| 4 | Length | 0.4m-6m |
| 5 | Package | in wooden case or in bundles |
