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Yanggu Yihui Drilling Tools Co.,Ltd.

ADDRESS:No.216 Zhengyang Road, Qingdao, Shandong,China.



Rock Bolts Accessories EX Drill Bit

Rock Bolts Accessories EX Drill Bit

Anchor bits is used as a sacrificial consumable for frilling hole, there usually have Tungsten carbide and steel hardened two types, through machining or casting production technology....

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Rock Bolts Accessories EX Drill Bit

Ex Drill Bit is one of the R-thread drill bit. It is one of the parts of self-drilling anchor bolt, which is an advanced system which can ensure the anchoring effect for complex ground conditions. It can be integrated with the functions of drilling, grouting and anchoring.

Hardened cross drill bit is for loose to medium dense ground conditions.

Thread type: R25,R32,R38,R51, T30, T40, T52, T73, T76, T103, T130 etc.



We Yanggu Yihui Drilling Tools Co.,Ltd. is the professional supplier in geotechnical engineering and construction area, we offer a comprehensive range of self drilling anchor bolt, the bolts can be used in a wide range of projects, such as tunneling support, hydroelectric station, soil nailing, micro piles, mining, and other projects.

Our main products including T/R-thread Self drilling hollow bar(anchor bolts), self drilling anchor bit, couplers, nuts, plates and other accessories. Type R25, R32, R38, R51, T30, T40, T52, T73, T76 T103 etc are available for your choice.


We can have the fasted delivery time, please contact me for the exact time.


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