single Tube Bit
This series of impregnated core bits is designed to be sustainable and cost effective. Adjust the bit to accommodate slower rotation speeds and heavy duty field stations. They are less sensitive to abuse, rough handling, and abrasive formations. A range of standard matrices and a diamond impregnated height are available for the most common applications. For field investigations and core drilling in shallow formations of less than 150 m (500 ft), this series of impregnated core bits is your best choice. We are Diamond Tools Manufacturer.
FEATURES&BENEFITS
* Less sensitive to abuse for high sustainability and cost efficiency
* Matrices for a wide range of formations, easy bit selection
* Standardized design makes the bit range competitive and cost effective
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STANDARD SPECIFICATION
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ITEM
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DIAMOND BIT
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REAMING SHELL
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Swedish
Metric
T2
Series
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Size
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Bit-set OD
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Bit-set ID
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mm
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inch
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mm
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inch
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mm
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inch
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36
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36.0
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1.417
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22.0
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0.866
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36.3
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1.429
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46
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46.0
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1.811
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32.0
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1.260
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46.3
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1.823
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56
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56.0
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2.205
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42.0
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1.654
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56.3
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2.217
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66
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66.0
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2.598
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52.0
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2.047
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66.3
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2.610
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76
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76.0
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2.992
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62.0
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2.441
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76.3
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3.004
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86
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86.0
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3.386
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72.0
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2.835
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86.3
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3.398
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101
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101.0
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3.976
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84.0
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3.307
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101.3
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3.988
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Swedish
T
Series
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TAW
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47.6
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1.875
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23.2
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1.31
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48.0
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1.89
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TBW
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59.5
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2.345
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44.9
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1.77
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59.9
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2.36
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TNW
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75.3
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2.965
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60.5
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2.38
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75.7
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2.98
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APPLICATION
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Application 1
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Soft to medium hard rock with abrasive and fractured to competent formations Matrix series 1-4
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Application 2
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Medium hard to hard rock with slightly abrasive and slightly broken to competent formations Matrix series 5-8
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Application 3
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Hard to very hard rock with competent formations Matrix series 9-10
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MATRIX SERIES
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Rock Group
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Formation Description
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Rock Type
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1-4
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Soft to medium hard
Very abrasive to slightly abrasive
Very fractured to slightly broken
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Unmetamorphosed or weakly metamorphosed shales,
Sandstone and limestone
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5
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Medium hard
Abrasive
Moderately fractured to slightly
broken
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Limestone and dolomite.
Weathered granite and gneiss.
Serpentinite and metaperidotite.
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6
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Medium hard
Moderately abrasive
Moderately fractured to slightly
broken
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Unmetamorphosed or weakly metamorphosed diorite,
Gabbro, peridotite and gneiss.
Basalt, andesite.
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7
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Medium hard - hard
Moderately abrasive
Slightly fractured to competent
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Metabasalt, amphibolite.
Metamorphosed diorite and gabbro.
Diabase.
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8
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Hard
Slightly abrasive
Competent
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Quartz rich skarn.
Granite and pegmatite
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9
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Very hard
Slightly abrasive
Very competent
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Metamorphosed granitic rock and quartz rich gneiss.
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10
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Extremely hard
Non-abrasive, fine grained
Very competent
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Chert and jasperite.
Quartzite.
Highly metamorphosed volcanic.
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