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Description
76mm 89mm T45 hard rock mining threaded button drill bit
45mm R32 thread drill bit rock drill bit high quality diamond button drill bit
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100 CIR90 low air pressure button hammer bit
115mm MISSION 40 well drilling DTH hammer button drill bit
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38mm 4 & 5 & 8 buttons 7/11/12 degree tapered drill bit by button maKing machine
38mm 4 & 5 & 8 buttons 7/11/12 degree tapered drill bit by button making machine
BR1 HDD horizontal directional drilling bits weld on bits for back reamer
Product Description| Type | Button Number | Button size | Weight |
| A | 12 | 12*12 | 2.3KGS |
| B | 12 | 12*12 | 2.3KGS |
| Button shape | Advantages |
| Spherical | it is used in hard and complicated rock. |
| Parabolic | it is used in medium and doft rock, its drill spped is the fastest. |
| Mixed | it is used in hard rock, its drilling speed is faster than Spherical button |
