Insert bit ( Drill rods ) This integrated bit with rod is used for Small Rock Drill (TH-5 Root Hammer) which is produced by HIRADO, Japan. It is best for drilling small holes on concrete , bedrock and hard rocks in where construction job site, stone industry etc.
Tapered rods ( Drill rods ) These rods are used for Small Rock Drill (TH-5 Root Hammer). It can be used with HIRADO bit attached to top of the rod. And also it is high durability because of special steel.