T51 Retrac Thread Button Bit with 89mm Diameter for Hard Rock Drilling

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Dec 23, 2024
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T51 thread button rock drill bit 89mm,Thread Button Bit Description: Caracteristique: (1) Bit body type: Standard/Retrac (2) Bit body : normal type and retrac type (3) R thread: R22 R25 R28 R32 R38 (4) T thread: T38 T45 T51 ST58 GT60 (5) Bit diameter: 41-127mm. (6) Drill bit models: cross bit/button bit (7) Button bit shape: spherical/parabolic (8) Bit face shape: flat face and drop centre A comprehensive range of various button bits shown as below: R32 Name Diameter Tip size
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