... 4mm 3.1800Wpower,3850r/min speed 4.220V/50Hz Cut-Off Machine/power tools/machine cutter Certificate: Certificate of CCC ... and great cutting efficiency. 2. Convenient trigger switch with lock-off button prevents accident in operation.3. Steady structure and reinforced ... intensity overload function design. It is suitable for the cutting-off the common carbon steel,screw-thread steel,hot-rolled round ...