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Integral Drill Steel is used by a hand held drill machine in Under-ground mining and for small hole drilling, equipped with small power rock drills, like air leg rock drills, hand held rock drills, etc. It can reduces the expense of impact energy, improves the drilling speed and efficiency, also it can be used for drilling bore hole diameter from 30mm to 41mm usually. Regarding Integral drill steels，the quality of a steel material and a tungsten carbide is very important to get good drilling performance.
Shank size :Hex19*108mm;Hex22*108mm;Hex25*108mm
Head Diameter:26mm~45mm
Effective length:600~6000mm
Material:55SiMnMo
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Shank Style |
Length |
Head Diameter |
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mm |
inch |
mm |
inch |
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Hex19*108mm
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400~4000 |
1’4’’~13’1” |
23~35 |
27/32~1 3/8 |
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Hex22*108mm
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400~9600 |
1’4’’~13’6” |
26~41 |
1 1/32~1 39/64 |
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Hex25*108mm
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600~6400 |
1’ 11 5/8”~21’ |
33~45 |
1 19/64~1 25/32 |
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Hex25*159mm
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800~6400 |
2’7”~21’ |
35~42 |
1 3/8~1 21/32 |
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