Yanggu Yihui Drilling Tools Co.,Ltd.
ADDRESS:No.216 Zhengyang Road, Qingdao, Shandong,China.
Hardened tri-blade drill bit with a drop center button face
It suitable for offers an increased cutting performance in fills and chalk.
We are professional manufacturer SDA anchor system, we have totally advantage in the whole market. Our items are superior in...
Tri-blade drill bit with tungsten carbide blades and a drop center configuration with hardened button face.
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