Customization: | Available |
---|---|
Type: | Core Drill |
Usage: | Metal Drilling, Masonry Drilling, Well Drilling, Wood Drilling |
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Rock formation | Bit type | Bit size | Drilling weight | Rotary speed | ||
mm | inch | kN/mm | r/min | |||
Very soft | Soft Marl, Clays, Sands, Salts etc. | 1 | 187.3~346.1 | 7 3/8~13 5/8 | 441~735 | 120~50 |
soft | Clays, Soft Shale, Marl, Sands, Salts etc. | 2 | 95.2~174.6 | 3 3/4-6 7/8 | 245-490 | 100-50 |
187.3~346.1 | 7 3/8-13 5/8 | 490-784 | 90-40 | |||
Medium soft | Shale, Marl, Sandstone, Soft Limestone etc. | 3 | 95.2~174.6 | 3 3/4-6 7/8 | 245-490 | 80-40 |
187.3~311.1 | 7 3/8- 12 1/4 | 490-784 | 80-40 | |||
medium | Hard Shale, Limestone, Medium/Hard Sandstone etc. | 4 | 95.2~174.6 | 3 3/4-6 7/8 | 294-539 | 80-60 |
187.3~241.3 | 7 3/8-9 1/2 | 539-833 | 60-40 | |||
medium hard | Hard Dolomite, Limestone, Hard Sandy, Rock etc. | 5 | 95.2~174.6 | 3 3/4-6 7/8 | 294-539 | 80-60 |
187.3~241.3 | 7 3/8-9 1/2 | 539-833 | 60-40 | |||
hard | Sandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc. | 6 | 95.~-174.6 | 3 3/4-6 7/8 | 294-539 | 80-40 |
187.3-215.9 | 7 3/8-8 1/2 | 580-882 | 60-40 | |||
Very hard | Quartzite, Chert, Basalt Granites, Pyrites etc. | 7 | 95.2-174.6 | 3 3/4-6 7/8 | 294-539 | 80-40 |
Tricone drill bits include Steel Tooth (or milled tooth) bits and Tungsten Carbide Insert (TCI) bits. |
TCI bits are much more durable than Steel Tooth bits, but with a higher cost to manufacture. |
Both types of Tricone Bits are available with: |
(1) Open Bearing or Sealed Bearing |
(2) Roller Bearing or Friction Bearing (Journal Bearing) |
(3) Gage Protected or Non-Gage Protected, etc. |