Grinding wheel must be checked carefully before the installation and identification. Check the identification of steps to:
Step one: check for proper wheel brands, selection meets all performance, the shape and size of the grinding wheel.
Step two: check the differential wheel appearance and structure. Eye observation wheel appearance is damaged (or cracked). Skin injury (or crack) the wheel cannot be used. Also requires both ends of the grinding wheel surface is flat, without obvious skew.
Third step: check and identification of grinding cracks. Hand wheel with wooden hammers tap grinding wheel to hear their voices, tinkling sound of grinding wheel no crack, cracked wheels hoarseness, which cannot be used
Learn more than grinding method of identifying, purchasing good quality grinding wheel is no longer a problem