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China water well drilling rig

ST58

Top hammer drilling tools for bench drilling
Bit Diameter:89mm-102mm
Button bit design:Flat face,drop centre,normal and retrac body .
Tungsten carbide(buttons):Spherical ,ballistic and conical .
Applications : Bench .
We have different designs for various rock formations ,and a long service life to decrease use costs for users .

Dimesions D Flushing hole(mm) buttons(mm) Angle Class Part No. Button bit
mm in Front No. size Gauge No. size Front No. size Gauge No. size
89 3 1/2 4*10 - 6*12 8*14 35° M F3089ST5814D
102 4    4*11 - 6*12 8*14 35° M F30102ST5814D
89 3 1/2 2*14 - 6*12 8*14 35° H F3089ST5814D
102 4    2*15 - 6*13 8*14 35° H F30102ST5814D
89 3 1/2 2*11 2*9 6*12 8*14 35° H F3089ST58F14R
102 4    2*12 2*9 6*12 8*14 35° H F30102ST58F14R
89 3 1/2 4*-10 - 6*12 8*14 35° M F3089ST5814DR
102 4    4*11 - 6*12 8*14 35° M F30102ST5814DR

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