12 Degree Rock Drilling Tools Mining Hard Rock Drill Tungsten Carbide Tipped Button Pilot Drill Bit For Stone
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- Supplier: Guiyang Acedrills Rock Tools Co. Ltd.
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Product Overview
Description
12 Degree Rock Drilling Tools Mining Hard Rock Drill Tungsten Carbide Tipped Button Pilot Drill Bit For Stone
These bits are designed for layer drilling, to enlarge pilot holes for long hole blasting of drop raises in underground mines, and constructing service holes.
Acedrills' reaming equipments come with three kinds: reamer bit match with pilot bit, or dome bit or hole opener bit separately.
| Reaming Bits |
Pilot Drill Bits | |
Dome Bits | |
Hole Opener Bits | |
Bits Diameter |
|
57~160mm | |
36 or 40mm | |
76~152mm | |
|
Tapper Degree 6º,12º |
|
PRODUCT SPECIFICATION
Bits Diameter | Connection | |
Reaming Bits | 57 ~ 160mm (2 1/4” ~ 6 1/4”) | 6°, 12° taper degree, or R25, R28, R32 threads |
Pilot Drill Bits | 36 or 40mm (1 27/64” or 1 37/64”) | with back thread size of R25, R28, R32, and matched central connection as the relative reamer bits |
Dome Bits | 76 ~ 152mm (3” ~ 6”) | R25, R28, R32, R38, T38, T45, and T51 |
Hole Opener Bits | Reamed:76 ~ 165mm (3” ~ 6”) Pilot:26 ~ 102mm (1” ~ 4”) | R32, R38, T38, T45, and T51 |
Notes:
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