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396We all know that when a large diameter drill bit is connected to a smaller size bolt, it can affect drilling performance, so in an anchor drilling operation, a self-drilling anchor bit converter is required to connect the large diameter bit to the smaller size bolt. General specifications：R25-R32, R32-R38, R38-R51, R51-T76
We all know that when a large diameter drill bit is connected to a smaller size bolt, it can affect drilling performance, so in an anchor drilling operation, a self-drilling anchor bit converter is required to connect the large diameter bit to the smaller size bolt.
General specifications：R25-R32, R32-R38, R38-R51, R51-T76
