1. Always keep your hands away from the cuttingarea and the diamond disk. Always keep the otherhand on the side handle. If you hold the tool withboth hands, your hands will not be injured by thedisk.2. Do not touch the underside of the work becausethe guard cannot protect the part of the disk underthe work.3. Always use a diamond disk with well-matchedsize and center (diamond or circular shape).Mismatched disk and holder will result in eccentricoperation out of control.4. Do not use any washer or bolt that is damagedor unfit in size; otherwise you will lose control ofoperation.5. Do not use any grinding wheel.6. Do not use any diamond disc that does notconform to the Manufacturer’s stipulations.7. Do not use any cutting disk that has beendamaged, distorted or cracked.8. Do not operate the tool without the fixed guard.9. Do not start the tool with the disk touching thework.10. When switching off the tool, do not put down thetool until the disc completely stops running, norshould any external force be exerted to stop thedisk.11. Disconnect the plug from the power source andensure the diamond disk stand still whenreplacing the disc, adjusting the cutting depth orwater pipe, or repairing the tool.12. Only hold the tool by its insulated grippingsurface when the diamond disk is possiblycutting through concealed wires or its own cord.If the diamond disk touches a “live” wire, the tool’sexposed metal parts may be energized and thusshock the operator.13. Be especially cautious when “blind cutting”through walls or other blind areas because thediamond disk may cut gas or water piping, wires orresilient objects.Warning! To reduce the risk of injury, theuser must read the instruction manual.