flat cutting disc Precautions replacement process

Any wheel wear problems have some wear and tear of its requirements, wear a certain extent it is necessary to replace the new wheel. Not in order to save material, it requires the bench grinder wheels‍ use of ultra-wear, which is a very unsafe illegal behavior flat cutting disc. A general rule, when the wheel wear to a larger diameter than the diameter of 10mm chuck should be replaced with new wheel. Valid questions from the Treasury brought out a new wheel is not necessarily qualified wheel, new wheel even buy from the manufacturers are not necessarily qualified wheel. Any wheel has its certain expiration date, within the validity period of use, it is qualified wheel; than valid use, it is not necessarily qualified wheel. Rules of order "wheel should be within the validity period, resin and rubber bonded grinding wheel rotating storage must be approved by the test, those who pass the year before use." Texture problems with the process, if construction cutting blades‍ you find a local wheel cracks, should immediately stop using and re-replacement of the grinding wheel, grinding wheel to avoid crushing injury accident.