Hard Formations
Recommended Drill Bits
90 mm CIR90 Ballistic DTH Button Bit for Mining
- Size90 mm (3.54 in); CIR90 hammer family
- ConnectionCIR90 DTH shank family
150 mm 45A High-Pressure DTH Button Bit for Mining
- Size150 mm (5.91 in) bit gauge; four-inch 45A hammer class
- Connection45A DTH hammer shank; dimensions to be verified
T38–T51 Non-Sticking Jumbo Button Bit for Tunneling
- SizeT38–T51 nominal series, about 38–51 mm (1.50–2.01 in); hole gauge not stated
- ConnectionT38, T45, or T51 by selected model
45 mm Nine-Button Threaded Bit for Mining
- Size45 mm (1.77 in)
- ConnectionThreaded; series not stated
32–42 mm Cold-Pressed Four-Button Bit for Tunnel Mining
- Size32–42 mm (1.26–1.65 in); listed gauges 32, 36, and 42 mm
- ConnectionTapered family; dimensions not stated
45–64 mm R32 Threaded Button Bit for Hydraulic Drilling
- Size45–64 mm (1.77–2.52 in); 45, 48, 51, 57, and 64 mm gauges
- ConnectionR32
45–51 mm R32 Thread Button Bit for Mining Jumbos
- Size45–51 mm (1.77–2.01 in); R32
- ConnectionR32
R32–T45 Carbide Ball Button Bit for Top-Hammer Drilling
- SizeR32–T45 nominal series, about 32–45 mm (1.26–1.77 in); hole gauge not stated
- ConnectionR32, SR35, T38, or T45 by selected model
45 mm R32 Button Bit for Hard-Rock Jumbos
- Size45 mm (1.77 in); R32
- ConnectionR32; source taper wording requires clarification
34 mm Seven-Tooth Button Bit for Geological Exploration
- Size34 mm (1.34 in)
- ConnectionNot stated; verify drill rod interface
35 mm Seven-Button Cold-Pressed Bit for Tunneling
- Size35 mm (1.38 in)
- ConnectionNot stated; verify drill rod interface
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