Tunnel Drilling Machine is a highly efficient and easy-to-use diamond vertical drilling machine. With a rated voltage of 220-240V and a power input of 2500W, this machine provides a maximum capacity of 250mm. The mechanical safety clutch gives further protection to the drill bit in case the motor unit stops or reverses. The spindle connection is 1 1/4” UNC and the stroke of the machine is 500mm. It is constructed with plenty of care to deliver your ultimate experience with heavy duty drill machine.